ZenWatch 2 M400 Forerunner 235 TicWatch Pro Flex
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Basic Info

Suggested Price $150 $200 $299.99 $300 $100
Release 2016 2014 2017 2018 2013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart n/a
Oxygen
Sleep
Steps
Swim

Battery

Duration n/a 8 hours to 30 days 9 days 30 days 5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a NA
Mac n/a
Windows n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 320 x 320 n/a 215 x 180 400 x 400 NA
Size 1.63 inches or 1.45 inch n/a 1.23 inches 1.4 inches NA
Touch NA
Type AMOLED n/a MIP OLED/FSTN LED

Functions

Audio Speaker Alerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance IP67 3 ATM 5 ATM IP68 1 ATM

Notifications

Phone
Emails n/a
Texts n/a

Software

Operating System Android Wear n/a Wear OS NA
Apps
Music

All Wearables