Pebble Time Round vs. Fitbit Zip vs. Polar A370 vs. Sony SmartBand vs. Amazfit T-Rex

 
Time Round
Zip
A370
SmartBand
T-Rex
 PebbleTime RoundRemove Buy NowFitbitZipRemove Buy NowPolarA370Remove Buy NowSonySmartBandRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$60$179.95$100$140
Release20152012201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days6 monthsUp to 3 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/an/a160 x 80NA360 x 360
Sizeroundn/a1.18 inchesNA1.3 inches
TouchNA
Typee-papern/aTFT LCDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX7Splash ResistantWR30IP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aNABuild-in
Apps
Music

All Wearables