Polar Grit X vs Polar Grit X Pro

What Grit X does better (1) and where Grit X Pro wins (0) — every spec side by side.

Polar · 2020Grit X

4.0Score

1 advantage≈ $460

Higher score

Polar · 2021Grit X Pro

4.0Score

0 advantages≈ $570

3.4Display3.4

3.5Battery life3.5

2.1Health tracking2.1

2.2Sports & outdoor2.2

8.0Build & durability6.7

Dimensions

Size comparison

Grit XGrit X Pro

Drawn to the same scale from the official dimensions (front and side).

Grit X Pro has no measurable advantages in this pair.

Specifications

Only differences	Polar Grit X≈ $4604.0	Polar Grit X Pro≈ $5704.0
Design & durability
Case size	47 mm	47 mm
Weight	64 g	79 g
Thickness	13 mm	13 mm
Height	47 mm	47 mm
Width	47 mm	47 mm
Case material	Stainless steel	Stainless steel
Water resistance	10 ATM	10 ATM
Water rating (maker)	WR100	WR100
Military-grade (MIL-STD-810)	Yes	Yes
Colours	White & Silver, Green & Silver, Green & Black, Black & Black	Arctic Gold, Black
Display
Screen size	1.2″	1.2″
Display technology	Memory-in-pixel (transflective)	Memory-in-pixel (transflective)
Panel	MIP	MIP
AMOLED / OLED display	No	No
Always-on display	Yes	Yes
Touchscreen	Yes	Yes
Resolution (width)	240 px	240 px
Resolution (height)	240 px	240 px
Pixel density	200 ppi	200 ppi
Battery
Battery life (smartwatch mode)	6 days	6 days
GPS battery life	35 h	35 h
Battery capacity	345 mAh	346 mAh
Battery type	Li-Pol	Li-Pol
Health sensors
Optical heart rate	Yes	Yes
Skin temperature	No	No
HRV tracking	Yes	Yes
Sleep tracking	Yes	Yes
Sensors	Barometer, Magnetometer compass, Accelerometer, Gyroscope	Barometer, Magnetometer compass, Accelerometer, Gyroscope
Sports & navigation
Built-in GPS	Yes	Yes
Offline maps	No	No
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
LED flashlight	No	No
Platform
Operating system	Polar OS	Polar OS
Platform	Proprietary	Proprietary