Smartwatch

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This article is about smartwatches generally. For the Sony brand, see Sony SmartWatch.


A smartwatch is a computerized wristwatch with functionality that is enhanced beyond timekeeping. While early models can perform basic tasks, such as calculations, translations, and game-playing, modern smartwatches are effectively wearable computers. Many run mobile apps, using a mobile operating system.

Some smartwatches function as portable media players, offering playback of FM radio, audio, and video files to the user via a Bluetooth or USB headset. Some models, also called 'watch phones', feature full mobile phone capability, and can make or answer phone calls.[1][2][3]

Internal hardware is various. Most have a rechargeable battery and graphical display and many have a touch screen. Peripheral devices may include camera, thermometer, accelerometer, altimeter, barometer, compass, GPS receiver, speaker and SDcard that is recognized as a mass storage device by a computer. Software may include Map display, scheduler and personal organizer, calculator, and various kinds of watch face. The watch may communicate with external devices such as sensors, a wireless headset, or a heads-up display.

Like other computers, a smartwatch may collect information from internal or external sensors. It may control, or retrieve data from, other instruments or computers. It may support wireless technologies like Bluetooth, Wi-Fi, and GPS. For many purposes, a "wristwatch computer" simply serves as a front end for a remote system, communicating by various radio technologies.

Smartwatches are advancing, especially their user interfaces and health related applications.[4]

Features and applications

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Many smartwatch models manufactured in the 21st century are completely functional as standalone products. Some serve as sport watches, the GPS tracking unit being used to record historical data. For example, after a workout, data can be uploaded onto a computer or online to create a log of activities for analysis or sharing. Some watches can serve as full GPS watches, displaying maps and current coordinates, and recording tracks. Users can "mark" their current location and then edit the entry's name and coordinates, which enables navigation to those new coordinates.

"Sport watch" functionality often includes activity tracker features (also known as "fitness tracker") as seen in GPS watches made for Training, Diving, and Outdoor sports. Functions may include training programs (such as intervals), Lap times, speed display, GPS tracking unit, Route tracking, dive computer, heart rate monitor compatibility, Cadence sensor compatibility, and compatibility with sport transitions (as in triathlons).

Other watches can cooperate with an app in the smartphone to carry out their functions. They may be little more than timepieces unless they are paired, usually by Bluetooth, with a mobile phone. Some of these only work with a phone that runs the same mobile operating system; others use a unique watch OS, or otherwise are able to work with most smartphones. Paired, the watch may function as a remote to the phone. This allows the watch to display data such as calls, SMS messages, emails, and calendar invites, and any data that may be made available by relevant phone apps.

As companies continually add competitive products into the market, media space is becoming a desired commodity on smart watches. With Apple, Sony, Samsung, and Motorola introducing their smart watch models, 15% of tech consumers[5] use wearable technologies. This is a dense market of tech consumers who possess buying power, which has attracted many advertisers. It is expected for mobile advertising on wearable devices to increase heavily by 2017 as advanced hypertargeting modules are introduced to the devices. In order for an advertisement to be effective on a smart watch, companies have stated that the ad must be able to create experiences native to the smart watch itself.[6]

History

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Early years

The first digital watch, which debuted in 1972, was the Pulsar manufactured by Hamilton Watch Company. "Pulsar" became a brand name which would later be acquired by Seiko in 1978. In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, making it most likely the first watch with user-programmable memory, or "memorybank" watch.[7] With the introduction of personal computers in the 1980s, Seiko began to develop watches with computing ability. The Data 2000 watch (1983) came with an external keyboard for data-entry. Data was synced from the keyboard to the watch via electro-magnetic coupling (wireless docking). The name stems from its ability to store 2000 characters. The D409 was the first Seiko model with on-board data entry (via a miniature keyboard) and featured a dot matrix display.[8] Its memory was tiny, at only 112 digits.[7] It was released in 1984 in gold, silver and black.[9] These models were followed by many others by Seiko during the 1980s, most notably the "RC Series":

During the 1980s, Casio began to market a successful line of "computer watches", in addition to its calculator watches. Most notable was the Casio data bank series. Novelty "game watches", such as the Nelsonic game watches, were also produced by Casio and other companies.[citation needed]

Seiko RC series

The RC-1000 Wrist Terminal was the first Seiko model to interface with a computer, and was released in 1984.[8] It was compatible with most of the popular PCs of that time, including Apple II,II+ and IIe, the Commodore 64, IBM PC, NEC 8201, Tandy Color Computer, Model 1000, 1200, 2000 and TRS-80 Model I, III, 4 and 4p.

The RC-20 Wrist Computer was released in 1985 under the joint brand name "Seiko Epson".[10][11] It had a SMC84C00 8-bit Z-80 microprocessor; 8 KB of ROM and 2 KB of RAM. It had applications for scheduling, memos, and world time and a four-function calculator app. The dot-matrix LCD displayed 42×32 pixels, and more importantly, was touch-sensitive. Like the RC-1000, it could be connected to a personal computer, in this case through a proprietary cable. It was also notable in that it could be programmed, although its small display and limited storage severely limited application development.[8]

The RC-4000 PC Data graph also released in 1985, was dubbed the "world's smallest computer terminal".[8] It had 2 KB of storage. The RC-4500 (1985), also known as the Wrist Mac, had the same features as the RC-4000, but came in a variety of bright, flashy colors.

Timex Datalink Model 150 as worn by commander William Shepherd during Expedition 1 and cosmonaut Mikhail Tyurin, Expedition 14, on the ISS in 2006

1994

The famous Timex Datalink, a so-called wristwatch, product line was introduced in 1994. The early Timex Datalink Smartwatches realized a wireless data transfer mode to communicate with a PC. Appointments and contacts created with Microsoft Schedule+, the predecessor of MS Outlook, could be easily transmitted to the watch via a screen blinking light protocol.

1998

In 1998, Steve Mann invented, designed, and built the world's first Linux wristwatch,[12] which he presented at IEEE ISSCC2000, 2000 February 7, where he was named "the father of wearable computing".[13]

See also Linux Journal,[14] where Mann's Linux wristwatch appeared on the cover and was the feature article of LJ Issue 75.

Seiko launched the Ruputer in Japan - a wristwatch computer with a 3.6 MHz processor. It was not very successful since instead of a touchscreen it used a joystick alike device to input characters, much like high scores in arcade games and the small screen with a resolution at 102x64 in 4 greyscales made it hard to read large amounts of text. Ouside of Japan this watch was distributed as the Matsucom onHand PC. Despite the rather low demand the Matsucom onHand PC was distributed until 2006, making it a smartwatch with a rather long life cycle. Ruputer and onHand PC applications are 100% compatible. This watch is sometimes considered the first smartwatch since it was the first watch to offer graphics display (albeit monochrome) and many 3rd party applications (mostly homebrew).

1999

In 1999, Samsung launched the world's first watch phone, the SPH-WP10. It had a protruding antenna, a monochrome LCD screen, and a 90-minutes of talk time with an integrated speaker and microphone.[15]

2000

The first Linux Smartwatch[16] was presented at IEEE ISSCC2000, 2000 February 7, where presenter Steve Mann was named "the father of wearable computing".[13] This watch also appeared on the cover and was the feature article of LJ Issue 75.[17]

In June 2000, IBM displayed a prototype for a wristwatch that ran Linux. The original version had only 6 hours of battery life, which was later extended to 12.[18] It featured 8MB of memory and ran Linux 2.2.[19] The device was later upgraded with an accelerometer, vibrating mechanism, and fingerprint sensor. IBM began to collaborate with Citizen Watch Co. to create the "WatchPad". The WatchPad 1.5 features a 320 × 240 QVGA monochrome touch sensitive display and runs Linux 2.4.[20][21] It also features calendar software, Bluetooth, 8 MB of RAM and 16 MB of flash memory.[22][23] Citizen was hoping to market the watch to students and businessmen, with a retail price of around $399.[23]

Epson Seiko introduced their Chrono-bit wristwatch in September, 2000. The Chrono-bit watches feature a rotating bezel for data input, synchronize PIM data via a serial cable, and can load custom watch faces.[24]

2004

Microsoft releases the SPOT smartwatch. SPOT stands for Smart Personal Objects Technology, an initiative by Microsoft to personalize household electronics and other everyday gadgets. The watch was supposed to offer information at a glance where other devices would have required more immersion and interaction. The SPOT Watch had a monochrome 90×126 pixel screen.[25]

2003

In 2003 Fossil released the Wrist PDA, a watch which ran the Palm OS and contained 8 MB of RAM and 4 MB of flash memory.[26][27] It contained a built in stylus to help use the tiny monochrome display, which had a resolution of 160×160 pixels. Although many reviewers declared the watch revolutionary, it was criticized for its weight (108 grams) and was ultimately discontinued in 2005.[28]

2009

In 2009, Samsung launched the S9110 Watch Phone which featured a 1.76-inch (45 mm) color LCD display and was 11.98 millimetres (0.472 in) thin.[15]

2010

Sony Ericsson launches the Sony Ericsson LiveView, a wearable watch device which is basically an external Bluetooth display for an Android Smartphone.

2013

In 2013, the claim to first ever smartwatch to capture the full capability of a smartphone was laid by startup Omate with the TrueSmart. The TrueSmart originated from a Kickstarter campaign which raised over 1 million dollars, making it the 5th most successful Kickstarter to date. The TrueSmart made its public debut in early 2014.[29]

Consumer device analyst Avi Greengart, from research firm Current Analysis, suggested that 2013 may be the "year of the smartwatch", as "the components have gotten small enough and cheap enough" and many consumers own smartphones that are compatible with a wearable device. Wearable technology, such as Google Glass, may evolve into a business worth US$6 billion annually and a July 2013 media report revealed that the majority of major consumer electronics manufacturers were undertaking work on a smartwatch device at the time of publication. The retail price of a smartwatch could be over US$300, plus data charges, while the minimum cost of smartphone-linked devices may be US$100.[30][31]

As of July 2013, the list of companies that were engaged in smartwatch development activities consists of Acer, Apple, BlackBerry, Foxconn/Hon Hai, Google, LG, Microsoft, Qualcomm, Samsung, Sony, and Toshiba. Some notable omissions from this list include HP, HTC, Lenovo, and Nokia.[31] Science and technology journalist Christopher Mims identified the following points in relation to the future of smartwatches:

  • The physical size of smartwatches is likely to be large.
  • Insufficient battery life is an ongoing problem for smartwatch developers, as the battery life of devices at the time of publication was three to four days and this is likely to be reduced if further functions are added.
  • New display technologies will be invented as a result of smartwatch research.
  • The success level of smartwatches is unpredictable, as they may follow a similar trajectory to netbooks, or they may fulfill aims akin to those of Google Glass, another wearable electronic product.[32]

Acer's S.T. Liew stated in an interview with British gadget website Pocket-Lint, "... I think every consumer company should be looking at wearable. Wearable isn’t new … it just hasn’t exploded in the way that it should. But the opportunity’s for billions of dollars’ worth of industry."[33]

HOT Watch by PHTL features a speaker and microphone on the strap allowing for calls to be answered on the watch.
HOT Watch speaker and microphone embedded on the strap. Magnetic charging pins at left.

As of 4 September 2013, three new smartwatches have been launched: the Samsung Galaxy Gear, Sony SmartWatch 2,[34] and the Qualcomm Toq.[35] PHTL, a company based in Dallas, Texas, completed is crowd-funding process on Kickstarter for its HOT Watch smartwatch in September 2013. This device enables users to leave their handsets in their pockets, since it has a speaker for phone calls in both quiet and noisy environments.[36]

In a September 2013 interview, Pebble founder Eric Migicovsky stated that his company was not interested in any acquisition offers,[37] but revealed in a November 2013 interview that his company has sold 190,000 smartwatches, the majority of which were sold after its Kickstarter campaign closed.[32]

Motorola Mobility CEO Dennis Woodside confirmed that his company is working on a smartwatch during a December 2013 interview.[38] Woodside showed an awareness of the difficulties that other companies have experienced with wrist-wearable technologies and explained:

There's clearly gonna be something that changes on your wrist, how it works and what exactly it is is something our teams are working on hard. Whatever it is, it has to compete with what works now ... We can't have something fragile, we can't have something that needs to be charged everyday. You're going to have to have some functionality that's just killer otherwise why spend the money on yet another product.[32]

2014

At the 2014 Consumer Electronics Show a large number of new smartwatches were released from various companies such as Razer Inc,[39] Archos,[40] and several other companies, as well as a few startups. Some have begun to call the 2014 CES a "wrist revolution"[41] because of the amount of smartwatches release and the huge amount of publicity they began to receive at the start of 2014.

At Google I/O on 25 June 2014, the Android Wear platform was introduced and the LG G Watch and Samsung Gear Live were released. The Wear-based Moto 360 was announced by Motorola in 2014.[42] At the end of July, Swatch's CEO Nick Hayek announced that they will launch a Swatch Touch with smartwatch technologies in 2015.[43]

In the UK, the Wearable Technology Show had its début in London, and was host to several smartwatch companies exhibiting their newest models.

The launch of Samsung's Gear S smartwatch was covered by the media in late August 2014. The model features a curved Super AMOLED display and a built-in 3G modem, with technology writer Darrell Etherington stating on the TechCrunch website, "we’re finally starting to see displays that wrap around the contours of the wrist, rather than sticking out as a traditional flat surface." The corporation will commence selling the Gear S smartwatch in October 2014 alongside the Gear Circle headset accessory.[44]

At IFA 2014 Sony Mobile announced the third generation of its smartwatch series, the Sony Smartwatch 3 powered by Android Wear.[45] Also was announced the Fashion Entertainments' e-paper watch.[46]

Apple Watch
Apple Watch.

On 9 September 2014, Apple Inc. announced its first smartwatch called Apple Watch to be released in early 2015.[47] On 24 April 2015, Apple Watch began shipping across the world.[48]

Apple’s first foray into wearable technology was met with considerable criticism during the pre-launch period, with many early technology reviews citing issues with battery life and hardware malfunctions. However, others praise Apple for creating a potentially fashionable device that can compete with "traditional watches",[49] not just the smartwatch industry in general. The watch only turns on when you activate the watch (either by lifting your wrist, touching the screen or pressing a button).

On 29 October 2014, Microsoft announced the Microsoft Band, a smart fitness tracker and the company's first venture into wrist worn devices since SPOT (Smart Personal Objects Technology) a decade earlier. The Microsoft Band was released at $199 the following day, on 30 October 2014.[50]

2015

On October 2015, Samsung unveil its Samsung Gear S2,it features a rotating bezel for ease of use, and an IP68 rating for water resistance up to 1.5 meters deep in 30 minutes. The watch is compatible with industry-standard 20 mm straps.

2016

At the 2016 Consumer Electronics Show, Razer released the Nabu Watch, a dual-screen smartwatch: integrates an always-on illuminated backlit display, that takes care of some pretty standard features as date and time, and a second OLED screen, which is activated by raising your wrist and is where you can explores its smart features.[51]

Smartwatch operating systems

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Main article: Mobile operating system

Android

Android Wear

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Main article: Android Wear

Android Wear is a smartwatch operating system developed by Google Inc.

WatchOS

File:WatchOS2applewatch.png
WatchOS

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Main article: WatchOS

WatchOS is a proprietary mobile operating system developed by Apple Inc.

Tizen

Tizen in a Samsung Gear2

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Main article: Tizen

Tizen is a Linux-based operating system for devices, including smartphones, tablets, in-vehicle infotainment (IVI) devices, smart TVs, laptops and other smart devices. Tizen is a project within the Linux Foundation and is governed by a Technical Steering Group (TSG) composed of Samsung and Intel among others. Samsung released the Samsung Gear 2, Gear 2 Neo, Samsung Gear S and the Samsung Gear S2 running Tizen.[52]

Ubuntu Touch

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Main article: Ubuntu Touch

Ubuntu Touch is a mobile version of the Ubuntu operating system developed by Canonical UK Ltd and Ubuntu Community.[53] It is designed primarily for touchscreen mobile devices such as smartwatches, smartphones and tablet computers.

List of smart watches in production

Smart watches Company
Sony SmartWatch [54] Sony
SmartWatch 2[54]
Qualcomm Toq[35] Qualcomm
Pebble Watch, Steel, Pebble
Pebble Time, Time Steel, and Time Round
Pebble 2, Pebble time 2
Wearing Digital Weda (Slap Band)[55] Wearing Digital
Ruputer Seiko
TAG Heuer Connected TAG Heuer
Timex Ironman ONE GPS+ Timex Group USA
Timex Datalink[56]
Vivoactive Garmin
NikeFuel Nike, Inc.
WIMM One Wimm Labs, acquired by Google [57]
Motoactv Motorola
Moto 360
MetaWatch Strata Meta Watch, Ltd
MetaWatch Frame
MetaWatch M1
Samsung Galaxy Gear[54] Samsung
Samsung Gear 2, Gear 2 Neo and Gear Fit[58]
Kreyos Meteor Kreyos
GEAK Watch[59] Unknown
HOT Watch[36] PHTL
Omate TrueSmart Omate
Z1 Android Watch-Phone Unknown
Fashion S9110 Unknown
LG GD910 (limited edition) LG
Hyundai MB 910 Hyundai
Asus ZenWatch Asus
Asus ZenWatch 2
Android SmartWatch[60] Unknown
LG G Watch[61] LG
Razer Nabu Watch Razer
Samsung Gear Live Samsung[44]
Samsung Gear S2
F80 Watch Abardeen
Neptune Pine Neptune Computer Inc.
XS3+ Exetech
Apple Watch Apple
iRist Intex Technologies [63]
  • While more are in production with current development, some companies are using popular outlets such as Kickstarter or Indiegogo to fund their projects.[64]

Comparison

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Hardware

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See also: List of devices using Mediatek SoCs and IPS panel
Product Announced SIM card Processor RAM/Flash Resolution Display type Always-on display[65] Battery (mAh) BT Microphone
Razer Nabu Watch[62] January 2016 no 128 x 16 single color OLED Green tickY (1 year) CR2032 and USB 4.0 LE
Samsung Galaxy Gear[66] 4 September 2013 no Single-Core 800 MHz (Dual-Core 1.6 GHz) 512MB/4GB 320x320 OLED (Super AMOLED) ???? 315 4.0 LE
Samsung Gear 2[67] 22 February 2014 no Dual-Core 1 GHz Exynos3250 512MB/4GB 320x320 OLED (Super AMOLED) ???? 300 4.0 LE
Samsung Gear 2 Neo[68] 22 February 2014 no Dual-Core 1 GHz Exynos3250 512MB/4GB 320x320 ???? 300 4.0 LE
Samsung Gear Live[69] 25 June 2014 no Single-Core 1.2 GHz MSM8226 512MB/4GB 320x320 OLED (SuperAMOLED) ???? 300 4.0 LE
Samsung Gear Fit[70] 11 April 2014 no STM32F439[71] 160 MHz 16MB 128x432 OLED (curved AMOLED) ???? 210 4.0
Samsung Gear S 28 August 2014 Green tickY nano-SIM Dual-Core 1 GHz 512MB/4GB 360x480 OLED (curved SuperAMOLED) Green tickY 300 4.1
LG G Watch 25 June 2014 no Quad-Core 1.2 GHz MSM8226 512MB/4GB 280x280 LCD ???? 400 4.0 LE
LG G Watch R[72] 4 September 2014 no Quad-Core 1.2 GHz MSM8226 512MB/4GB 320x320 OLED ???? 410 4.0 LE
LG Watch Urbane[73] 7 January 2015 no Quad-Core 1.2 GHz MSM8226 512MB/4GB 320x320 OLED (P-OLED) Green tickY 410 4.1 LE
LG Watch Urbane LTE[74][75] 21 April 2015 Green tickY Quad-Core 1.2 GHz MSM8226 1GB/4GB 320x320 ???? 700 4.1 LE
Asus ZenWatch 3 September 2014 no Quad-Core 1.2 GHz MSM8226 512MB/4GB 320x320 OLED (SuperAMOLED) Green tickY 410 4.0 LE
Sony SmartWatch 2 25 June 2013 no Single-Core 180 MHz CM4 220x176 OLED ???? 225 3.0
Sony SmartWatch 3[72] 3 September 2014 no Quad-Core 1.2 GHz BCM23550 512MB/4GB 320x320 ???? 420 4.0 LE
Motorola Moto 360[76] 18 March 2014 no Single-Core 1 GHz TI OMAP 3 512MB/4GB 320x290 LCD Green tickY 320 4.0 LE
Apple Watch 9 September 2014 no Apple S1 512MB/8GB 38mm:
272×340
42mm:
312×390		 OLED (AMOLED) Red XN 205 4.0 LE
Pebble Watch[77] 11 April 2012 no Single-Core STM32F205RE 80 MHz CM3 128KB/4MB 144x168 LCD (e-paper) ???? 140 4.0 LE no
Pebble Time[77] May 2015 no Single-Core STM32F439ZG 100 MHz CM4 256KB/16MB 144x168 LCD (e-paper) Green tickY 150 4.0 LE yes
Pebble 2 24 May 2016 no LCD (e-paper) Green tickY yes
Pebble time 2 24 May 2016 no LCD (e-paper) Green tickY yes
Qualcomm Toq 4 September 2013 no 200 MHz CM3 288x192 IMOD-Mirasol ???? 240 3.0
Exetech XS3[78] 1 November 2013 Yes MTK 6577 512MB/32GB 240x240 ???? 420 4.0
U Watch U8[79] Red XN MTK2502C 128MB 128×128 TFT LCD Red XN 230 3.0+EDR
U Watch U11 [80] Green tickY MTK6260 360 MHZ 320x320 HD Red XN 360 4.0+EDR

Software

Smart watch Company OS Android version iOS version CPU Type Bluetooth NFC Developer Options GPS Notify Link Loss Alert Notify Missed Call Notify Timer Notify View Content Call Conversation Find My Phone Voice Control Respond to Notifications Notify Sound Notify Backlit Screen Notify Vibration Ambient Light Sensor Gyroscope Magnetometer Multi-touch Accelerometer Dust and Water Resistance Clock Display Type Screen Size, Inches Screen Resolution, pixels Pixel density, ppi Display Technology Average Battery Life, days Battery Capacity, mAh Battery Technology Case Diameter, mm Case Thickness, mm Wrist Band Width, mm Weight (main unit+watchband), g Wristband Options Replaceable Wristbands LED Flashlight
HOT Smart Watch PHTL Proprietary 2.3-4.2 5-7 ARM Cortex M3 Processor 4.0 No Yes No Yes No No Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes Yes Splash Proof Digital 1.26 Unknown Black and White ePaper 3 Unknown Lithium-ion 54 8 24.4 Unknown Unknown No Yes
Pebble Pebble Pebble OS 2.3-5.0 5-7 ARM Cortex-M3 4.0 No Yes No No Yes Yes Yes No No No No No Yes Yes Yes No Yes No Yes 50m (5 atm) Digital 1.26 144x168 Black and White ePaper 7 140 Lithium-ion 58.4 11 22 38 White, Black Yes No
Pebble Steel Pebble Pebble OS 2.3-5.0 5-7 ARM Cortex-M3 4.0 No Yes No No Yes Yes Yes No No No No No Yes Yes Yes No Yes No Yes IP67 / 50m (5 atm) Digital 1.26 144x168 Black and White ePaper Unknown 130 Lithium-ion Unknown Unknown Unknown Unknown Unknown Yes No
Pebble Time Pebble Pebble OS ARM Cortex M4 4.0+ No Yes No Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No 30m (3 atm) Digital / Analog 1.25 144x168 Color ePaper 7 150 Lithium-ion 38 9.5 22 45.5 Possible to change to smart-straps Yes No
Pebble Time Steel Pebble Pebble OS ARM Cortex M4 4.0+ No Yes No Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No 50m (5 atm) Digital / Analog 1.25 144x168 Color ePaper 10 Lithium-ion 47 10.5 22 62.3 Possible to change to smart-straps Yes No
Pebble Time Round Pebble Pebble OS ARM Cortex M4 4.0+ No Yes No Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No 1m (Splash Proof) IPX7 Digital / Analog 1 180x180 Color ePaper 2 56 Lithium-ion 38.5 7.5 14 28/32 Yes No
Pebble 2 Pebble Pebble OS ARM Cortex M4 4.1 No Yes No Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No 30m Digital / Analog 1.26 144x128 153 Black and White ePaper 7 39.5 9.8 22 31.7 Possible to change to smart-straps Yes No
Pebble Time 2 Pebble Pebble OS ARM Cortex M7 4.1 No Yes No Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No 30m Digital / Analog 1.5 200x228 202 Color ePaper 10 40.5 10.8 22 64.6 Possible to change to smart-straps Yes No
SmartWatch 2 Sony Micrium uC/OS-II 4.0+ No ARM Cortex-M4 (STM32F439) 3.0 Yes Yes No Unknown Unknown No Yes Unknown Unknown Unknown Unknown Unknown Yes Yes No Unknown No Yes Yes IP57 Digital 1.6 220x176 LCD 4 225 Lithium-ion 58.6 9 24 123 Unknown Yes No
SmartWatch 3 Sony Android Wear 4.3+ No ARM Cortex-A7 (BCM23550) 4.0 Yes Yes Yes Yes Yes Yes Yes Unknown Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes IP68 Digital 1.6 320x320 LCD (Transflective) 2 420 Lithium-ion 51 10 36 Unknown Silicon (Black/White/Lime), Stainless Steel Yes No
Watch Urbane LG Android Wear 4.3+ No 1,2 GHz Snapdragon 400 4.0 Yes Yes No Yes Yes Yes Yes Unknown Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes IP67 Digital 1.3 320x320 P-OLED 1 410 Lithium-ion 52.2 10.9 45.5 115 Unknown Yes No
Watch Urbane LTE LG WebOS No ARM Cortex-A7 (Qualcomm 400) 4.0 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes IP67 Digital 1.3 320x320 P-OLED 1 410 Lithium-ion 52.2 10.9 45.5 115 Unknown Yes No
XS-3 Exetech Android 4.0+ No MTK 6577 4.0 No No Yes Unknown Yes Yes Yes Unknown Unknown Unknown Unknown Unknown Unknown Unknown No Unknown Unknown Unknown Unknown IP65 Digital 1.54 220x220 LCD 4 Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
Apple Watch Apple watchOS No 8.2+ Apple S1 4.0 LE Yes Yes From paired iPhone Unknown Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Unknown Yes Yes IPX7 Digital 1.7 / 1.5 319x390 / 272x340 AMOLED 1.5 250 / 205 Lithium-ion 42mm / 38mm 12.46 / 12.3 36.2 / 32.9 Unknown Yes Yes No

See also

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3

References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  12. ↑ Canadian Patent 2275784, filed 1999 June 29, Issued 2000 Oct. 24
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  14. ↑ [1] Issue 75, 1 July 2000, Pp. 86-91 + Cover
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  16. ↑ Canadian Patent 2275784, filed 1999 June 29, Issued 2000 Oct. 24, Wristwatch-based videoconferencing system, by Steve Mann
  17. ↑ A GNU/Linux Wristwatch Videophone
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  33. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  34. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  35. ↑ 35.0 35.1 Lua error in package.lua at line 80: module 'strict' not found.
  36. ↑ 36.0 36.1 Lua error in package.lua at line 80: module 'strict' not found.
  37. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  38. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  39. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  40. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  41. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  42. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  43. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  44. ↑ 44.0 44.1 Lua error in package.lua at line 80: module 'strict' not found.
  45. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  46. ↑ Sony was hiding its e-paper watch in plain sight all along, Engadget International Editions.
  47. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  48. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  49. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  50. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  51. ↑ Razer Nabu Watch is a dual screen smartwatch with year-long battery life CES 2016: Razer joins the smartwatch party and it's doing things a little differently
  52. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  53. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  54. ↑ 54.0 54.1 54.2 Lua error in package.lua at line 80: module 'strict' not found.
  55. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  56. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  57. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  58. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  59. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  60. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  61. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  62. ↑ 62.0 62.1 Razer Nabu Watch is a dual screen smartwatch with year-long battery life
  63. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  64. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  65. ↑ 2015 Smartwatch Comparison Guide
  66. ↑ http://www.samsung.com/us/mobile/wearable-tech/SM-V7000ZKAXAR
  67. ↑ http://www.samsung.com/us/mobile/wearable-tech/SM-R3800VSAXAR
  68. ↑ http://www.samsung.com/us/mobile/wearable-tech/SM-R3810ZAAXAR
  69. ↑ http://www.samsung.com/us/mobile/wearable-tech/SM-R3820ZKAXAR
  70. ↑ http://www.samsung.com/us/mobile/wearable-tech/SM-R3500ZKAXAR
  71. ↑ http://www.phonearena.com/reviews/Samsung-Gear-Fit-Review_id3650/page/3
  72. ↑ 72.0 72.1 http://blog.gsmarena.com/smartwatch-bonanza-hottest-smartwatches-ifa-compared/#more-73189
  73. ↑ http://www.lg.com/us/smartwatch/urbane
  74. ↑ http://www.wareable.com/smartwatches/lg-watch-urbane-lte-announced-9643
  75. ↑ http://www.gsmarena.com/lg_watch_urbane_lte-7070.php
  76. ↑ https://www.ifixit.com/Teardown/Motorola+Moto+360+Teardown/28891
  77. ↑ 77.0 77.1 https://www.reddit.com/r/pebble/wiki/tech_specs
  78. ↑ http://www.exetech-smartwatches.com/index.php/en/2014-03-01-13-22-40/watches/xs-3black-silver-detail
  79. ↑ http://www.geekbuying.com/item/Bluetooth-Smart-WristWatch-U8-U-Watch-for-iPhone-4-4S-5-5S-Samsung-S4-Note-3-HTC-Android-Phone-Smartphones---Black-328444.html
  80. ↑ http://www.geekbuying.com/item/U11-U-Watch-Removable-Bluetooth4-0-Smart-Watch-MTK2502C-Wrist-Watch-For-iPhone-Android-Phone---Black-354784.html

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