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Forerunner 255 Music vs Forerunner 955

Garmin Forerunner 255 Music vs Garmin Forerunner 955

What Forerunner 255 Music does better (2) and where Forerunner 955 wins (5) — every spec side by side.

Garmin · 2022Forerunner 255 Music

4.3Score

2 advantages≈ $400

Garmin · 2022Forerunner 955

4.8Score

5 advantages≈ $500

Higher score

3.5Display3.8

4.8Battery life6.4

4.9Health tracking4.9

5.0Sports & outdoor6.0

6.5Smart features6.5

2.7Build & durability2.5

Dimensions

Size comparison

Forerunner 255 MusicForerunner 955

	Forerunner 255 Music	Forerunner 955	Difference
Height	45.6 mm	46.5 mm	−0.9 mm
Width	45.6 mm	46.5 mm	−0.9 mm
Thickness	12.9 mm	14.4 mm	−1.5 mm
Weight	49 g	52 g	−3 g

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

Why is Forerunner 255 Music better than Forerunner 955?

Weight49 g vs 52 g+6%
Thickness12.9 mm vs 14.4 mm+12%

Why is Forerunner 955 better than Forerunner 255 Music?

GPS battery life30 h vs 42 h+40%
Battery life (smartwatch mode)14 days vs 15 days+7%
Storage4 GB vs 32 GB8×
Sport profiles58 vs 80+38%
GPS battery life (dual-band)16 h vs 20 h+25%

Specifications

Side by side

Only differences	Garmin Forerunner 255 Music≈ $4004.3	Garmin Forerunner 955≈ $5004.8
Design & durability
Case size	46 mm	46 mm
Weight	49 g	52 g
Thickness	12.9 mm	14.4 mm
Height	45.6 mm	46.5 mm
Width	45.6 mm	46.5 mm
Case material	Plastic / polymer	Plastic / polymer
Sapphire crystal	No	No
Lens / cover glass	Corning® Gorilla® Glass 3	Corning® Gorilla® Glass 3 DX
Strap material	silicone	silicone
Water resistance	5 ATM	5 ATM
Water rating (maker)	5 ATM	5 ATM
Display
Screen size	1.3″	1.3″
Display technology	Memory-in-pixel (transflective)	Memory-in-pixel (transflective)
Panel	Sunlight-visible, transflective memory-in-pixel	Sunlight-visible, transflective memory-in-pixel
AMOLED / OLED display	No	No
Always-on display	Yes	Yes
Touchscreen	—	Yes
Resolution (width)	260 px	260 px
Resolution (height)	260 px	260 px
Pixel density	200 ppi	200 ppi
Battery
Battery life (smartwatch mode)	14 days	15 days
GPS battery life	30 h	42 h
GPS battery life (dual-band)	16 h	20 h
Battery type	Lithium ion	—
Wireless charging	No	No
Charging	Garmin proprietary plug charger	Garmin proprietary plug charger
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
Temperature sensor	Yes	Yes
HRV tracking	Yes	Yes
Sleep tracking	Yes	Yes
Sensors	GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer	GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	Yes	Yes
Satellite systems	GLONASS, GALILEO, BDS, QZSS	GLONASS, GALILEO, BDS, QZSS
Offline maps	—	Yes
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	Yes	Yes
Sport profiles	58	80
Connectivity
NFC payments	Yes	Yes
Wi-Fi	Wi-Fi 4	Wi-Fi 4
ANT+ sensors	Yes	Yes
Smart features
Music on the watch	Yes	Yes
Storage	4 GB	32 GB
Third-party apps	Yes	Yes
Platform
Operating system	Garmin OS	Garmin OS
Platform	Proprietary	Proprietary
Works with	iOS, Android	iOS, Android