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Approach S44 vs Run 2

Garmin Approach S44 vs Suunto Run 2

What Approach S44 does better (2) and where Run 2 wins (6) — every spec side by side.

Garmin · 2025Approach S44

4.0Score

2 advantages≈ $300

Suunto · 2026Run 2

5.4Score

6 advantages≈ $320

Higher score

5.3Display7.1

2.7Battery life4.6

2.5Sports & outdoor4.5

3.0Build & durability4.1

Dimensions

Size comparison

Approach S44Run 2

	Approach S44	Run 2	Difference
Height	43 mm	46.5 mm	−3.5 mm
Width	43 mm	46.5 mm	−3.5 mm
Thickness	11.4 mm	11.7 mm	−0.3 mm
Weight	42 g	53 g	−11 g

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

Why is Approach S44 better than Run 2?

Weight42 g vs 53 g+26%
Thickness11.4 mm vs 11.7 mm+3%

Why is Run 2 better than Approach S44?

GPS battery life15 h vs 30 h2×
Battery life (smartwatch mode)10 days vs 12 days+20%
Sport profiles5 vs 326.4×
Screen size1.2″ vs 1.32″+10%
Resolution (width)390 px vs 466 px+19%
Pixel density325 ppi vs 353 ppi+9%

Specifications

Side by side

Only differences	Garmin Approach S44≈ $3004.0	Suunto Run 2≈ $3205.4
Design & durability
Case size	43 mm	46 mm
Weight	42 g	53 g
Thickness	11.4 mm	11.7 mm
Height	43 mm	46.5 mm
Width	43 mm	46.5 mm
Case material	Aluminium	Stainless steel
Sapphire crystal	No	—
Lens / cover glass	Corning ® Gorilla ® Glass 3	Gorilla Glas
Strap material	silicone	Silikon
Water resistance	5 ATM	5 ATM
Water rating (maker)	5 ATM	50 m / 5 bar / 5 ATM
Display
Screen size	1.2″	1.32″
Display technology	AMOLED	AMOLED
Panel	AMOLED	AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	Yes
Touchscreen	Yes	Yes
Resolution (width)	390 px	466 px
Resolution (height)	390 px	466 px
Pixel density	325 ppi	353 ppi
Battery
Battery life (smartwatch mode)	10 days	12 days
GPS battery life	15 h	30 h
GPS battery life (dual-band)	—	24 h
Battery capacity	—	380 mAh
Battery type	—	rechargeable lithium-ion
Wireless charging	No	—
Charging	Garmin proprietary plug charger	—
Health sensors
Optical heart rate	—	Yes
Blood oxygen (SpO2)	—	Yes
Temperature sensor	—	Yes
HRV tracking	—	Yes
Sleep tracking	—	Yes
Sensors	GPS, GLONASS, Galileo, Compass, Gyroscope, Accelerometer, Ambient light sensor	heart rate, SpO2, accelerometer
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	—	Yes
Satellite systems	GLONASS, GALILEO	GPS
Offline maps	—	Yes
Barometric altimeter	—	Yes
Compass	Yes	Yes
Multisport / triathlon mode	—	Yes
Sport profiles	5	32
Connectivity
Wi-Fi	—	Wi-Fi 1
Bluetooth	—	5
Smart features
Music on the watch	—	Yes
Storage	4 GB	—
Platform
Operating system	Garmin OS	Suunto OS
Platform	Proprietary	Proprietary
Works with	iOS, Android	iOS, Android