Polar A370 vs Polar M400

Polar A370 Polar M400

Basic Info

Wear TypeWristbandWristband
Price$10399$18000Polar A370 is 170% cheaper
Ratings

Activity & Fitness

Activity Yes YesBoth track daily activity
Calories Yes YesBoth track calories burned
Sleep Yes YesBoth can track your sleep
Heart Rate / Pulse Yes NoPolar A370 has built-in heart rate monitor
External HR Monitor No Yes
VO2 Max No YesPolar M400 shows the maximum volume of oxygen you can consume per minute
Distance Yes YesBoth track your running/walking distance
Steps Yes YesBoth track how many steps you take
Pace No Yes
Stairs / Floors No YesPolar M400 counts your climbing stairs or floors
Exercise Tagging Yes NoOnly Polar A370 provides exercise tagging
Smart Coach Yes YesBoth can help with smart coaching
Goal Setting Yes YesBoth can help with your goals setting
Inactivity Alertn/a YesPolar M400 helps you stay active with inactivity alert

Additional Features

GPS Yes YesBoth have integrated GPS modules
Compassn/a NoBoth don't have a compass
Watch / Clock Yes YesBoth have watch
Alarm Clock Yes YesBoth have alarm clock
Reminders No YesPolar M400 has a reminder option
Stopwatch Yes NoPolar A370 has a stopwatch
Music Playbackn/a NoBoth don't have music playback
ReportsActivity, SleepActivity, Sleep

Smartphone Remote Features

Notifications Yes YesBoth show smartphone notifications
Caller ID Yes YesBoth show caller ID notification
Music Control No NoBoth don't have phone music control
Call Controln/a YesPolar M400 allows you control phone calls
Camera Controln/a NoBoth don't have camera control
Find Phonen/a NoBoth don't have a find phone feature

Battery

Duration4 days24 daysPolar M400 battery life is about 6.0 times longer
Battery TypeRechargeable BatteryRechargeable Battery

Physical Specs

Weather Resistance Yes Yes
Waterproof Yes No
IP Ratingn/a3 ATM
Weight37 grams57 gramsPolar A370 is 20.0 g lighter

User Interface

Display Yes Yes
Display Sizen/an/a
Screen Resolution n/a 128 x 128 pixels
Color Displayn/a No
Touch Screenn/a No

Compatibility

Androidn/a YesPolar M400 is compatibles with Android phones and tablets
iOS Yes YesBoth compatible iOS devices
OS X/Mac No YesPolar M400 compatibles with MacBooks and iMacs
Windows Phone Yes YesBoth compatible with Windows Phone devices
Windows No YesPolar M400 allows you to locate your phone
Web Portal Yes YesBoth have access to online web portal
Social Featuresn/a YesYou can integrate Polar M400 with social networks and share information

Connectivity

Bluetooth Yes YesBoth have Bluetooth data transfer technology
Wi-Fin/a NoBoth don't have Wi-Fi connection
NFCn/a NoBoth don't have NFC connectivity
ANT+n/a NoBoth don't provide ANT+ wireless technology
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Polar A370

Polar M400