Pebble 2 + HR
Tech specs 
SizeBody dimensions: 39.5 x 30.2 x 11.3 mm
Thinness: 9.8 mm/11.3 mm
MaterialPolycarbonate + 10% Glass Fiber
ChargingTime series cable
BatteryLithium Ion
Battery lifeUp to 7 days
Water-resistanceUp to 30 mètres
Weight31.7 g
Sensoraccelerometer, optical heart rate sensor, microphone
DisplayFlat Corning Gorilla Glass - always on B&W
Screen size144 x 168 pixels
ColorsBlack, White, Aqua, Flame and Lime
OtherPLATFORM: Pebble OS
PROCESSOR: M4 ARM Cortex 100 MHz
MEMORY: 8MB storage, 128k internal RAM
CONNECTIVITY: Bluetooth
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
Floors
SleepYes
Heart rateYes
Stress & recovery
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected pay
LTE
Links 
Affiliate link*Amazon
Read moreArticle
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.