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Watch Series 6 vs Watch Series 9

Apple Watch Series 6 vs Apple Watch Series 9

What Watch Series 6 does better (1) and where Watch Series 9 wins (5) — every spec side by side.

Apple · 2020Watch Series 6

7.9Score

1 advantage≈ $770

Higher score

Apple · 2023Watch Series 9

5.9Score

5 advantages≈ $680

6.2Display8.2

5.0Health tracking8.6

9.3Sports & outdoor6.4

7.9Smart features7.9

5.7Build & durability6.0

Dimensions

Size comparison

Watch Series 6Watch Series 9

	Watch Series 6	Watch Series 9	Difference
Height	44 mm	45 mm	−1 mm
Width	38 mm	38 mm	=
Thickness	10.7 mm	10.7 mm	=
Weight	47 g	42 g	+5 g

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

Why is Watch Series 6 better than Watch Series 9?

Battery life (smartwatch mode)2 days vs 0.8 days2.5×

Why is Watch Series 9 better than Watch Series 6?

Peak brightness1,000 nits vs 2,000 nits2×
Storage32 GB vs 64 GB2×
Weight47.1 g vs 42.3 g+11%
Screen size1.78″ vs 1.9″+7%
Resolution (width)368 px vs 396 px+8%

Specifications

Side by side

Only differences	Apple Watch Series 6≈ $7707.9	Apple Watch Series 9≈ $6805.9
Design & durability
Case size	44 mm	45 mm
Weight	47.1 g	42.3 g
Thickness	10.7 mm	10.7 mm
Height	44 mm	45 mm
Width	38 mm	38 mm
Case material	Stainless steel	Stainless steel
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal glass	Sapphire crystal glass
Strap material	Fluorelastomer	—
Water resistance	5 ATM	5 ATM
Ingress protection	—	IP6X
Water rating (maker)	50 m / 5 bar / 5 ATM	50 m / 5 ATM
Colours	Silver, Graphite (DLC), Gold (PVD)	Graphite, Silver, Gold, Red
Display
Screen size	1.78″	1.9″
Display technology	OLED	OLED
Panel	Retina LTPO OLED	Retina LTPO OLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	Yes
Touchscreen	Yes	—
Resolution (width)	368 px	396 px
Resolution (height)	448 px	484 px
Pixel density	326 ppi	326 ppi
Peak brightness	1,000 nits	2,000 nits
LTPO display	Yes	Yes
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	2 days	0.8 days
Battery life (hours)	—	18 h
Battery capacity	304 mAh	308 mAh
Battery type	Li-Ion	Li-Ion
Wireless charging	Yes	Yes
Charged in 30 min	—	53%
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Skin temperature	—	Yes
Temperature sensor	—	Yes
Sleep tracking	Yes	Yes
Sensors	Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max	Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)
Sports & navigation
Built-in GPS	Yes	Yes
Satellite systems	GLONASS, GALILEO, QZSS	GLONASS, GALILEO, BDS, QZSS
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	—	Yes
LED flashlight	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
Ultra Wideband	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	64 GB
RAM	1 GB	—
Platform
Operating system	watchOS 7.0	watchOS 10
Platform	watchOS	watchOS
Works with	iOS	iOS
Chipset	Apple S6	Apple S9