Apple · Smartwatch

Apple Watch Series 6

First Apple Watch with SpO₂. Its updates ended with watchOS 26.

DiscontinuedApple no longer sells it new, so the price is its last list price.See current models

$399Apple →

Key specs

Battery life
18 hr
Charging
1h 30m
Weight
36.5g
Case size
44mm
Display
AMOLED, always-on
Water resistance
5 ATM (50m)
Phone
iPhone only
Sensors
Optical heart rate, ECG, SpO₂, Accelerometer, Gyroscope, Barometer, Compass, GPS, Altimeter, Ambient light, Microphone

The Series 6 (2020) added the pulse oximeter and the always-on altimeter. watchOS 27 dropped it, so watchOS 26 is its last major release — one that still brings sleep stages, sleep score, Training Load, and cycle tracking. What you give up against a modern model is the skin-temp sensor, the newer chip, and every watchOS feature from here on.

Strengths

  • First Apple Watch with SpO₂
  • Same case design as Series 5
  • Cheap on the used market

Tradeoffs

  • No watchOS 27 — updates ended with watchOS 26
  • No skin-temp or modern stress tracking
  • 18-hour battery

Full specs

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Common questions

How much does the Apple Watch Series 6 cost?
The Apple Watch Series 6 has a list price of $399.
Does the Apple Watch Series 6 require a subscription?
No. Apple sells an optional premium tier at a monthly fee for deeper analysis, but the Apple Watch Series 6 tracks and syncs without it.
How long does the Apple Watch Series 6 battery last?
About 18 hr of typical use per charge. Heavy GPS use, an always-on display, and continuous sensing all pull that number down.
How much does the Apple Watch Series 6 weigh?
The 44 mm Apple Watch Series 6 weighs 36.5 g.
How big is the Apple Watch Series 6?
The Apple Watch Series 6 has a 44 mm case in the configuration we list, which weighs 36.5 g.
Is the Apple Watch Series 6 waterproof?
The Apple Watch Series 6 is rated 5 ATM (50m), which covers showering, swimming, and surface water sports. It is not a dive rating.
Does the Apple Watch Series 6 work with iPhone and Android?
It pairs with iPhone only — there is no Android app.
Is the Apple Watch Series 6 still worth buying?
The Apple Watch Series 6 came out in 2020 and Apple has discontinued it, so new stock is limited and prices vary. Check it against the current smartwatch lineup before buying.