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Fenix 8 51mm AMOLED vs Fenix 8 51mm Solar

Garmin Fenix 8 51mm AMOLED vs Garmin Fenix 8 51mm Solar

What Fenix 8 51mm AMOLED does better (5) and where Fenix 8 51mm Solar wins (4) — every spec side by side.

Garmin · 2024Fenix 8 51mm AMOLED

8.9Score

5 advantages≈ $1,100

Higher score

Garmin · 2024Fenix 8 51mm Solar

7.5Score

4 advantages≈ $1,100

7.5Display4.4

9.4Battery life9.3

8.3Health tracking8.3

8.2Sports & outdoor8.2

3.2Smart features3.2

6.0Build & durability6.2

Dimensions

Size comparison

Fenix 8 51mm AMOLEDFenix 8 51mm Solar

	Fenix 8 51mm AMOLED	Fenix 8 51mm Solar	Difference
Height	51 mm	51 mm	=
Width	51 mm	51 mm	=
Thickness	14.7 mm	15.4 mm	−0.7 mm
Weight	102 g	95 g	+7 g

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

Why is Fenix 8 51mm AMOLED better than Fenix 8 51mm Solar?

AMOLED / OLED displayYes · Fenix 8 51mm Solar: No
Resolution (width)454 px vs 280 px+62%
Pixel density324 ppi vs 200 ppi+62%
GPS battery life (dual-band)62 h vs 52 h+19%
Thickness14.7 mm vs 15.4 mm+5%

Why is Fenix 8 51mm Solar better than Fenix 8 51mm AMOLED?

Battery life (smartwatch mode)29 days vs 30 days+3%
GPS battery life84 h vs 95 h+13%
Weight102 g vs 95 g+7%
Battery saver mode41 days vs 48 days+17%

Specifications

Side by side

Only differences	Garmin Fenix 8 51mm AMOLED≈ $1,1008.9	Garmin Fenix 8 51mm Solar≈ $1,1007.5
Design & durability
Case size	51 mm	51 mm
Weight	102 g	95 g
Thickness	14.7 mm	15.4 mm
Height	51 mm	51 mm
Width	51 mm	51 mm
Case material	Titanium	Titanium
Sapphire crystal	Yes	Yes
Lens / cover glass	Corning® Gorilla® Glass or sapphire crystal	Power Sapphire ™
Strap material	silicone	silicone
Water resistance	10 ATM	10 ATM
Water rating (maker)	10 ATM	10 ATM
Rated dive depth	40 m	40 m
Display
Screen size	1.4″	1.4″
Display technology	AMOLED	Memory-in-pixel (transflective)
Panel	AMOLED	Sunlight-visible, transflective memory-in-pixel
AMOLED / OLED display	Yes	No
Always-on display	—	Yes
Touchscreen	Yes	Yes
Resolution (width)	454 px	280 px
Resolution (height)	454 px	280 px
Pixel density	324 ppi	200 ppi
Battery
Battery life (smartwatch mode)	29 days	30 days
Battery life with always-on display	13 days	—
Battery saver mode	41 days	48 days
GPS battery life	84 h	95 h
GPS battery life (dual-band)	62 h	52 h
Battery type	Lithium ion	Lithium ion
Solar charging	—	Yes
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
ECG	Yes	Yes
Skin temperature	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, Ambient light sensor, Depth sensor	GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor, Depth sensor
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	Yes
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	Yes	Yes
Sport profiles	99	99
Dive mode	Yes	Yes
LED flashlight	Yes	Yes
Connectivity
NFC payments	Yes	Yes
Wi-Fi	Wi-Fi 4	Wi-Fi 4
ANT+ sensors	Yes	Yes
Smart features
Calls from the wrist	Yes	Yes
Speaker	Yes	Yes
Microphone	Yes	Yes
Voice assistant	Yes	Yes
Music on the watch	Yes	Yes
Storage	32 GB	32 GB
Third-party apps	Yes	Yes
Platform
Operating system	Garmin OS	Garmin OS
Platform	Proprietary	Proprietary
Works with	iOS, Android	iOS, Android