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Apple Watch SE 3, GPS, 40mm Midnight Aluminum Case with Sport Band

4.7 / 5.0(2140) Verified reviews

Smartwatches SKU CB-AWS3-01

Now$219.00$249.00

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Price when purchased online

The affordable Apple Watch, now with an Always-On display, the S10 chip and fast charging that fills it in under an hour.

In stock

Always-On Retina display
Sleep apnea notifications
18-hour all-day battery
50m swimproof design

Case size: 40mm

40mm

44mm

Colour: Midnight

Midnight

Starlight

Quantity

How you'll get this item

Shipping Arrives Thu, Aug 20

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About this item

Product details

SE 3 is the entry point to Apple Watch, and this generation closes most of the gap with the flagship. It runs the same S10 chip as Series 11, keeps 64GB of storage, and finally gets the Always-On display, so the time is visible without lifting your wrist.

Fast charging is the other headline: about 80 percent in 45 minutes, which makes overnight sleep tracking practical on an 18-hour battery.

A sensible pick if you want notifications, workouts, sleep score and crash detection without paying flagship money.

Sold and shipped by ComBuy. Free shipping on orders over $35.

Key features

Always-On Retina display is new to the SE line, readable at up to 1,000 nits
S10 chip runs Siri requests on device and enables the double tap and wrist flick gestures
Fast charging reaches about 80 percent in 45 minutes, or eight hours of use in fifteen
Sleep score, sleep stages and sleep apnea notifications from the wrist temperature and motion data
Crash Detection and Fall Detection call emergency services when you cannot reach the phone
50 metre water resistance with IP6X dust sealing for pool swims and dusty trails

Specifications

Brand	Apple
Category	Smartwatches
SKU	CB-AWS3-01
Display	Always-On Retina LTPO OLED, up to 1,000 nits
Resolution	324 x 394 pixels (40mm case)
Case sizes	40mm or 44mm
Case material	Aluminum with Ion-X front glass, Midnight or Starlight
Chip	Apple S10 SiP, 64-bit dual-core with 4-core Neural Engine
Storage	64GB
Battery life	Up to 18 hours normal use; up to 32 hours in Low Power Mode
Charging	Magnetic USB-C charger, about 80% in 45 minutes
Water resistance	50 metres (WR50), IP6X dust resistant
Sensors	Second-generation optical heart, temperature, compass, altimeter, accelerometer, gyroscope
Health features	Sleep score, sleep apnea notifications, wrist temperature, cycle tracking
Connectivity	Bluetooth 5.3, Wi-Fi, GPS/GNSS; 5G on cellular models
Compatibility	iPhone 11 or later running iOS 26, watchOS 26
Warranty	One-year limited hardware warranty

Shipping & returns

Standard shipping is free on orders over $35. Returns are accepted within 90 days of delivery in original condition.

Questions & answers

What does SE 3 leave out compared with Series 11?

No ECG, no blood oxygen sensing and no hypertension notifications, since those need the electrical heart sensor and the newer optical sensor. The display is also smaller, dimmer at peak and covered by Ion-X rather than sapphire.

Does it work with an Android phone?

No. Setup requires an iPhone 11 or later running iOS 26 or newer, and the watch stays paired to that phone.

Can it track sleep on an 18-hour battery?

Yes, and fast charging is what makes it workable. Fifteen minutes on the charger while you shower or eat adds roughly eight hours of use, so a full night of tracking does not leave you flat by lunchtime.

Should I pick 40mm or 44mm?

Only the case and screen size change; the chip, sensors and battery rating are identical. The 40mm suits wrists around 130 to 200mm, the 44mm suits larger wrists and shows a little more text per screen.

What comes in the box?

The watch, a sport band, and a magnetic fast-charging cable with a USB-C end. There is no wall adapter, so reuse a phone charger of 20W or more for the fastest charge.