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Galaxy Watch3 vs Galaxy Watch7

Samsung Galaxy Watch3 vs Samsung Galaxy Watch7

What Galaxy Watch3 does better (1) and where Galaxy Watch7 wins (6) — every spec side by side.

Samsung · 2020Galaxy Watch3

7.7Score

1 advantage≈ $110

Samsung · 2024Galaxy Watch7

8.6Score

6 advantages≈ $180

Higher score

7.3Display8.5

9.2Health tracking8.6

7.9Smart features7.9

4.1Build & durability7.4

Dimensions

Size comparison

Galaxy Watch3Galaxy Watch7

	Galaxy Watch3	Galaxy Watch7	Difference
Height	46.2 mm	44.4 mm	+1.8 mm
Width	45 mm	44.4 mm	+0.6 mm
Thickness	11.1 mm	9.7 mm	+1.4 mm
Weight	48 g	34 g	+14 g

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

Why is Galaxy Watch3 better than Galaxy Watch7?

Pixel density364 ppi vs 327 ppi+11%

Why is Galaxy Watch7 better than Galaxy Watch3?

Storage8 GB vs 32 GB4×
Weight48.2 g vs 33.8 g+43%
Screen size1.4″ vs 1.5″+7%
Resolution (width)360 px vs 480 px+33%
Battery capacity340 mAh vs 425 mAh+25%
Thickness11.1 mm vs 9.7 mm+14%

Specifications

Side by side

Only differences	Samsung Galaxy Watch3≈ $1107.7	Samsung Galaxy Watch7≈ $1808.6
Design & durability
Case size	46 mm	44 mm
Weight	48.2 g	33.8 g
Thickness	11.1 mm	9.7 mm
Height	46.2 mm	44.4 mm
Width	45 mm	44.4 mm
Case material	Titanium	Aluminium
Sapphire crystal	—	Yes
Lens / cover glass	Corning Gorilla Glass DX	Sapphire crystal
Strap material	—	Silikon
Water resistance	5 ATM	5 ATM
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Water rating (maker)	50 m / 5 bar / 5 ATM	50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810)	Yes	Yes
Colours	Mystic Bronze, Mystic Black, Mystic White	Cream, Silver, Green
Display
Screen size	1.4″	1.5″
Display technology	AMOLED	AMOLED
Panel	Super AMOLED	Super AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	—
Touchscreen	Yes	—
Resolution (width)	360 px	480 px
Resolution (height)	360 px	480 px
Pixel density	364 ppi	327 ppi
Peak brightness	—	2,000 nits
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	2 days	—
Battery capacity	340 mAh	425 mAh
Battery type	Li-Ion	Li-Ion
Wireless charging	Yes	Yes
Charging	—	kabellos, magnetisches Ladekabel, magnetische Ladeschale
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Skin temperature	Yes	Yes
Temperature sensor	—	Yes
Sleep tracking	Yes	Yes
Sensors	Accelerometer, gyro, heart rate, barometer	Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (skin), BioActive
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	—	Yes
Satellite systems	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS
Barometric altimeter	Yes	Yes
Compass	—	Yes
Multisport / triathlon mode	—	Yes
Connectivity
NFC payments	Yes	Yes
LTE (cellular)	Yes	Yes
eSIM	Yes	Yes
Wi-Fi	Wi-Fi 4	Wi-Fi 4
Bluetooth	5	5.3
Smart features
Calls from the wrist	Yes	Yes
Speaker	Yes	Yes
Microphone	Yes	—
Voice assistant	—	Yes
Music on the watch	Yes	Yes
Storage	8 GB	32 GB
RAM	1 GB	2 GB
Platform
Operating system	Tizen OS 5.5	Android Wear OS 5
Platform	Tizen	Android
Works with	iOS, Android	Android
Chipset	Exynos 9110	Exynos W1000