|Also known as||Pebble|
|Manufacturer||Pebble Technology, Corp., which will do business in California as Pebble Devices, Corp.|
|Generation||2 (Pebble Steel)|
|Introductory price||Kickstarter backers: USD 115
Pre-orders: USD 150
Retail: USD 150 Pebble Steel: 250
|Units sold||over 400,000 as of March 2014[update]|
|Operating system||Customized FreeRTOS Can communicate with Android and iOS apps using Bluetooth. The Pebble operating environment is closed source.|
|Power||7 days (assuming ~20–30 notifications a day, and a per-minute updating watchface.)|
|CPU||STM32F205RE Cortex M3 CPU|
|Memory||RAM 128KB (96KB OS, 24KB app, 8KB app services)|
|Storage||8 slots for apps/watch faces;
Original has 32 Mibit (4 MiB) flash,
Steel has 64 Mibit (8 MiB) flash,
plus 512KiB SoC flash memory
|Display||144×168 pixel Sharp Memory LCD "e-paper"|
3-axis accelerometer with gesture detection
magnetometer and ambient light sensor
|Connectivity||Bluetooth 2.1 (default), 4.0 LE (used for iOS 7 notifications) + EDR|
|Dimensions||50.33 mm (1.981 in) H
32 mm (1.3 in) W
8.44 mm (0.332 in) D 
|Weight||Pebble: 1.34oz Pebble steel: 1.97oz (with default watchband attached)|
|iPhone and Android|
|Related articles||smart watches|
The Pebble is a smartwatch developed by Pebble Technology Corporation and released in 2013 that was funded via the crowd funding platform Kickstarter. It features a black and white e-paper display, a vibrating motor, a magnetometer, ambient light sensors and an accelerometer, enabling its use as an activity tracker. The Pebble is compatible with Android and iOS devices. When connected to a phone, it can receive a vibrating alert to text messages, emails, incoming calls, and notifications from social media accounts. It can also act as a remote controller for the phone, or for cameras such as the GoPro. As of February 2014, the Pebble app store had over 1,000 applications.
The Pebble raised $10.3 million for Kickstarter, making it the most successful product funded through that company up until then. Best Buy, an American consumer electronics corporation, began selling Pebble smartwatches in July 2013, and sold out within five days.
The Pebble Watch was designed based on a concept by Eric Migicovsky describing a watch that could display messages from a smartphone and select android devices. Migicovsky successfully took his idea through the Y Combinator business incubator program, and unusually for a startup company at Y Combinator, Migicovsky's business actually generated revenue during the program. Migicovsky was able to raise US$375,000 from investors such as Tim Draper of Draper Fisher Jurvetson, but was unable to raise additional funds. Discussing his inability to raise further funds, Migicovsky told the Los Angeles Times, "I wasn't extremely surprised... hardware is much harder to raise money for. We were hoping we could convince some people to our vision, but it didn't work out."
After raising venture capital for the product under their former name inPulse, the company failed to attract traditional investors under their new brand name, so the company requested crowd funding in April 2012.
Migicovsky's company Pebble Technology launched a Kickstarter campaign on April 11, 2012 with an initial fundraising target of $100,000. Backers spending $115 would receive a Pebble when they became available ($99 for the first 200), effectively pre-ordering the $150 Pebble at a discounted price. Within two hours of going live, the project had met the $100,000 goal, and within six days, the project had become the most funded project in the history of Kickstarter to that point, raising over $4.7 million with 30 days left in the campaign.
On May 10, 2012, Pebble Technology announced they were limiting the number of pre-orders. On May 18, 2012, funding closed with $10,266,844 pledged by 68,928 people.
Pebble entered mass production in January 2013 with a planned production of 15,000 watches per week. Shipping was first expected to begin September 2012, but later on Pebble Technology was expected to begin shipping units on January 23, 2013. As of March 20, 2014, Pebble has sold over 400,000 units.
The watch has a 1.26-inch 144 × 168 pixel black and white e-paper display using an ultra low-power "transflective LCD" manufactured by Sharp with a backlight, a vibrating motor, a magnetometer, ambient light sensors and a three-axis accelerometer. It can communicate with an Android or iOS device using both Bluetooth 2.1 and Bluetooth 4.0 (Bluetooth Low Energy) using Stonestreet One's Bluetopia+MFi software stack. Bluetooth 4.0 with low energy (LE) support was not initially enabled, but a firmware update in November 2013 enabled it. The watch is charged using a modified USB-cable that attaches magnetically to the watch to maintain water resistance capability. The battery was reported in April 2012 to last seven days. Based on feedback from Kickstarter backers, the developers added water-resistance to the list of features. The Pebble has a waterproof rating of 5 atm, which means it can be submerged down to 40m and has been tested in both fresh and salt water, allowing one to shower, dive or swim while wearing the watch.
As of February 2014[update], the Pebble app store had over 1,000 applications. These include notifications for emails, calls, text messages, social media activity, stock prices; activity tracking (movement, sleep, estimates of calories burned); remote control of smartphones, cameras and home appliances; turn-by-turn directions using the GPS receiver in the smartphone.
The Pebble was slated to ship with apps pre-installed, including a cycling app to measure speed, distance and pace through GPS, and a golf rangefinder app that supports more than 25,000 courses. These apps use data received from a connected phone for distance, speed and range information. More apps will be downloadable from the phone, and an SDK will be freely available. Not all apps will be installed when the watch ships but CEO Eric Migicovsky announced on January 9, 2013 that there will be updates for the watch's OS (which is based on FreeRTOS) every 2–3 weeks until all features are added.
Pebble will integrate with the web service IFTTT, which will allow users to create rules for event that will send notifications to the watch. The watch's firmware operating system is based on FreeRTOS and uses Newlib, the STM32 Peripheral Lib, the Ragel state machine compiler, and an unnamed UTF-8 Decoder.
Pebble Technology announced that an open Pebble software development kit (SDK) would be released before shipment of the watches began. A proof-of-concept watchface SDK and documentation were released on April 12, 2013. The released SDK was limited to development for watch faces, simple applications and games. The second release of the SDK (now known as PebbleKit) was released on May 17, 2013, adding support for two-way communication between Pebbles and smartphones running iOS or Android via the AppMessage framework.
The first edition of the Pebble was released to mixed reviews. The design was acclaimed for being innovative, and the watch vibration results in higher awareness of phone alerts. For the Pebble Steel model reviewers noted the large price jump from $149 to $249 USD, the continued lack of touch-activation, and the cosmetic overhaul described as "less-geeky".
The Pebble Steel is the next generation of Pebble. Announced at CES 2014, it has a thinner body, tactile metal buttons, and Corning Gorilla Glass. It comes in 2 variations: a black matte finish and a brushed stainless steel finish, with both a black leather band and a matching steel band. The device also offers an indicator light not found on the original Pebble. The device began shipping in March, 2014 after shipping delays upset some customers.
- "Business Entity Detail". California Secretary of State. 2012-04-04. Retrieved 21 May 2014. "Entity number C3456720"
- Mangalindan, JP (2014-03-20). "Pebble sold 400,000 smartwatches last year, on track to double revenues in 2014". Fortune.
- "Pebble smart watch review – hands on". Expert Reviews. Retrieved 2013-09-05.
- Murray, Brad (2014-05-23). "FreeRTOS™ Code Revisions from Pebble".
- "What is Pebble's (and Steel's) actual amount of Memory and Storage (RAM and ROM)?". 2014-05-15.
- "Pebble Teardown". iFixit. Retrieved 19 March 2013.
- Detwiler, Bill (2014-06-16). "Cracking Open the Pebble Steel".
- Galan, Walter (2013-03-12). "Pebble Teardown". iFixIt.
- Chang, Alexandra (2012-05-14). "Hands On With Pebble Smartwatch, the Most Successful Kickstarter Project Ever | Gadget Lab". Wired.com. Retrieved 2013-08-28.
- FCC Office of Engineering and Technology (2012-12-27). "OET List Exhibits Report". Apps.fcc.gov. Retrieved 2013-09-05.
- Lee, Adriana (10 February 2014). "10 Cool Things A Pebble Smartwatch Can Do". ReadWrite.
- "Rejected By VCs, Pebble Watch Raises $3.8M on Kickstarter". Go.bloomberg.com. 2012-04-17. Retrieved 2012-04-22.
- Netburn, Deborah (2012-04-18). "Pebble smartwatch raises $4.7 million on Kickstarter funding site". latimes.com. Retrieved 2012-04-22.
- "Vancouver-born entrepreneur’s Pebble smartphone breaks Kickstarter record". Vancouver Sun. Retrieved 2012-05-12.
- Anthony Wing Kosner (2012-04-15). "Pebble Watch for iPhone and Android, The Most Successful Kickstarter Project Ever". Forbes. Retrieved 2012-04-20.
- Jared Newman, “Pebble Smartwatch Pre-Orders Are Sold Out, $10+ Million Pledged”, Time Techland, 10 May 2012
- Cowley, Stacy. "Kickstarter's top projects: When they shipped". CNNMoney. CNN, Fortune, and Money. Retrieved 2014-05-11.
- Neal, Dave. "CES: Kickstarter funded Pebble watch makes a splash". The Inquirer. Incisive Financial Publishing Limited. Retrieved 2013-03-05.
- Mangalindan, JP (March 20, 2014). "Pebble sold 400,000 smartwatches last year, on track to double revenues in 2014". Retrieved 20 March 2014.
- Migicovsky, Eric (January 9, 2013). "Pebble: E-Paper Watch for iPhone and Android by Pebble Technology » CES Announcement recap". Retrieved 9 January 2013.
- Pebble Smartwatch | iPhone & Android Smartwatch. Getpebble.com. Retrieved on 2014-01-14.
- Bennett, Brian (9 January 2013). "Pebble watch is the smartest timepiece ever (hands-on)". CNET. Retrieved 19 March 2013.
- "Pebble: E-Paper Watch for iPhone and Android by Pebble Technology » Manufacturing and Software Updates". Pebble Technology. Kickstarter. 6 February 2013. Retrieved 19 March 2013.
- Migicovsky, Eric (CEO, Pebble) (2012-07-30). "Why only one connection?". Pebble Technology Corp. Retrieved 21 May 2014.
- Klug, Brian (2013-11-06). "Pebble Releases Update _ Better iOS 7 Integration, New APIs, Enables Bluetooth LE". AnandTech. Retrieved 21 May 2014.
- "Allerta intros Pebble smartwatch, inPulse's attractive younger sibling". Engadget. Retrieved 2012-04-22.
- "Pebble: E-Paper Watch for iPhone and Android by Pebble Technology » We're waterproofing Pebble!". Kickstarter. Retrieved 2012-04-22.
- "Pebble Smartwatch Review". PC Mag. 2013-02-26. Retrieved 2013-06-13.
- Chang, Alexandra (2012-04-11). "Pebble E-Ink Smartwatch Connects to Your iOS or Android Phone | Gadget Lab". Wired.com. Retrieved 2012-04-22.
- Migicovsky, Eric (CEO, Pebble) (2012-07-18). "IFTTT Support". Pebble Technology Corporation.
- "Licenses | Pebble". Pebble. Retrieved 7 May 2014. "Software; FreeRTOS, newlib, STM32 Peripheral Lib, UTF-8 Decoder, Ragel"
- "Pebble: E-Paper Watch for iPhone and Android by Pebble Technology » Developer SDK availability". Pebble Technology. Kickstarter. 13 April 2012. Retrieved 6 March 2013.
- "Pebble Watchface SDK Release". 12 April 2012. Retrieved 12 April 2013.
- "Pebble Watchface SDK Documentation". 12 April 2012. Retrieved 12 April 2013.
- Pebble Watch Review. Business Insider (2013-04-17). Retrieved on 2014-01-14.
- Stein, Scott. (2014-01-06) Pebble Steel – Watches and wrist devices – CNET Reviews. Reviews.cnet.com. Retrieved on 2014-01-14.
- "Pebble Steel Shipping Delays Upsetting First Buyers". BestSmartWatchesCompared. 14 March 2014. Retrieved 21 August 2014.
|Wikimedia Commons has media related to Pebble Smartwatch.|
- Official website
- Pebble: E-Paper Watch for iPhone and Android at Kickstarter
- Pebble: E-Paper Watch for iPhone and Android at Kicktraq.com