Amazfit Stratos 2S vs. Polar Unite

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Amazfit Stratos 2S and Polar Unite. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.

Smartwatch Specifications Comparison

Amazfit Stratos 2S vs. Polar Unite Comparison Chart
GENERAL Amazfit Stratos 2S Polar Unite
Product Type Smart watch Sport watch
Supported Host Device OS Android 4.4 (KitKat) or later, iOS 9 or later iOS, Android
Wearing Style Watch style Watch style
Width - 43.4 mm
Height - 43.4 mm
Depth - 10.4 mm
Weight - 32 g
Body Material - Fibreglass reinforced polymer
Protection Dustproof, waterproof Water-resistant
Clock Display Yes Yes
FEATURES Amazfit Stratos 2S Polar Unite
Sensors Ambient light sensor, gyro sensor, heart rate, geomagnetic sensor, 3-axis accelerometer Accelerometer, ambient light sensor, optical heart sensor
Tracking Data Distance, time, speed, calories burned, sleep activity, heart rate, pace, cadence, oxygen level Distance, calories burned, activity, sleep activity, heart rate, steps taken
Goal Setting - Yes
Features Listening to music, idle alert Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide
Notifications Missed calls, SMS, Email, social apps, incoming calls Calendar, SMS, Email
Vibrating Alert Yes Yes
CONNECTIVITY Amazfit Stratos 2S Polar Unite
Wireless Interface IEEE 802.11b/g/n, Bluetooth 4.0 Bluetooth
Connectors - USB
DISPLAY Amazfit Stratos 2S Polar Unite
Type LCD - colour - transflective IPS - colour
Resolution 320 x 300 pixels 240 x 204 pixels
Screen Size 1.34" -
Screen Protection Dinorex Glass (scratch resistant glass) -
INPUT DEVICE Amazfit Stratos 2S Polar Unite
Type Touch sensitive screen Touch sensitive screen
CASE Amazfit Stratos 2S Polar Unite
Case Shape Round Round
Bezel Ceramic black -
Case Details Carbon fibre -
BAND Amazfit Stratos 2S Polar Unite
Band Type Band Band
Band Size - S/L
Band Width 22 mm 20 mm
Fits Wrist with Circumference - 130-210 mm
Changeable Yes Yes
Clasp Type Buckle Snap & slip
Band Material Leather Silicone
Band Colour Black Black | Blue | Pink | White
STORAGE Amazfit Stratos 2S Polar Unite
Storage Capacity 4 GB -
User Memory 2 GB -
RAM Amazfit Stratos 2S Polar Unite
RAM Size 512 MB -
CPU Amazfit Stratos 2S Polar Unite
Clock Speed 1.2 GHz -
BATTERY Amazfit Stratos 2S Polar Unite
Technology - Lithium polymer
Capacity 290 mAh 174 mAh
Battery Life Details - Watch mode + HR - up to 4 days
Training mode + HR - up to 50 hour(s)
Standby Time 5 days -
Rechargeable Battery - Yes
MISCELLANEOUS Amazfit Stratos 2S Polar Unite
Included Accessories - Charging/data cable
Preloaded Software - Polar Fitness Test, Polar Flow
Max Depth of Water Resistance 50 m 30 m
Max Operating Temperature - 50 °C
Min Operating Temperature - -10 °C
Warranty - 2-year warranty
Other projects: