Fitbit Flex 2 vs. Huawei Watch 2 vs. Polar A370 vs. Garmin Vivosmart 4 vs. HTC re Grip

 
Flex 2
Watch 2
A370
Vivosmart 4
re Grip
 FitbitFlex 2Remove Buy NowHuaweiWatch 2Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$350$179.95$130$199
Release20162017201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hoursUp to 3 days7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a480 x 480160 x 8048 x 128160 x 32
Sizen/a1.38 inches1.18 inches0.74 inches1.8 inches
Touchn/a
TypeLEDP-OLEDTFT LCDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP68WR305 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2NA
Apps
Music

All Wearables