Pebble Steel vs. Pebble Time Round vs. Huawei Talkband B2 vs. Fitbit Charge HR vs. Amazfit T-Rex

 
Steel
Time Round
Talkband B2
Charge HR
T-Rex
 PebbleSteelRemove Buy NowPebbleTime RoundRemove Buy NowHuaweiTalkband B2Remove Buy NowFitbitCharge HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$180$150$140
Release20142015201520152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days2 days3 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a128 x 88NA360 x 360
Size1.26 inchesround0.73 inchesNA1.3 inches
TouchNA
Typee-papere-paperPMOLEDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX7IP571 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSn/aNABuild-in
Apps
Music

All Wearables