Fitbit Flex 2 vs. Sony SmartBand Talk vs. Amazfit Bip vs. Polar A370

 
Flex 2
SmartBand Talk
Bip
A370
 FitbitFlex 2Remove Buy NowSonySmartBand TalkRemove Buy NowAmazfitBipRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$170$99.99$179.95
Release2016201420182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days30 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a296 x 128176 x 176160 x 80
Sizen/a1.4 inches1.28 inches1.18 inches
Touchn/a
TypeLEDE InkNATFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP68IP68WR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear
Apps
Music

All Wearables