Does the Apple Watch Series 8 work without an iPhone?

No. It pairs with an iPhone and needs one for setup and most apps. Cellular lets it make calls and texts without the phone nearby, but it still needs a carrier plan.

Is the Series 8 a big upgrade over the Series 7?

No. The main additions are overnight temperature sensing and Crash Detection. The screen, case sizes and battery life are close to the Series 7.

How long does the battery last?

Apple rates it at up to 18 hours of normal use, about a day. Workouts, cellular use and sleep tracking shorten that, so most owners charge it nightly.

Yes. It is water resistant to 50 meters and has a swim workout mode. Skip it in hot showers, saunas and high-speed water sports.

The watch with the Sport Band, a magnetic fast-charge USB-C cable and paperwork. A power adapter is not included.

Does it track sleep and temperature?

Yes. It tracks sleep stages and wrist temperature overnight, which Apple uses for cycle estimates. You need to wear it to bed, which uses battery.

Apple Watch Series 8 (GPS + Cellular) 45mm Aluminum Case with Midnight Sport Band - S/M - MNVJ3LL/A

Q: Where is the Apple Watch Series 8 (GPS + Cellular) 45mm Aluminum Case with Midnight Sport Band - S/M - MNVJ3LL/A cheapest?

At Amazon, for $502.83, as of our latest check.

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$502.83at AmazonChecked Nov 13

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What reviewers say

Owners rate the Series 8 highly for its reliable health tracking, bright always-on screen and the freedom of cellular. The most common complaints are the one-day battery and the modest changes from the Series 7.

What people mention

Battery lifeCriticisedOwners say it lasts roughly a day and needs charging nightly, less with workouts or sleep tracking.
DisplayPraisedThe always-on Retina screen is called bright and easy to read outdoors.
CellularPraisedBuyers like leaving the iPhone at home and still taking calls, texts and streaming music.
Health trackingPraisedHeart-rate, ECG and workout readings are described as consistent and useful.
Upgrade valueMixedReviewers say it is a small step from the Series 7, so upgraders see little new.
ComfortPraisedThe Sport Band is reported comfortable enough for sleep and long wear.

About the Apple Watch Series 8 (GPS + Cellular) 45mm Aluminum Case with Midnight Sport Band - S/M - MNVJ3LL/A

The Apple Watch Series 8 (GPS + Cellular) has a 45mm Midnight aluminum case and a Midnight Sport Band. Cellular lets it make calls, send texts and stream without an iPhone nearby.

It has an always-on Retina display with an edge-to-edge design and up to 1,000 nits of brightness. Health features include ECG, Blood Oxygen, heart rate and sleep stages, plus a temperature sensor for cycle and health insights. Crash Detection, Fall Detection and Emergency SOS are built in.

The watch is swimproof and runs watchOS 9, with support for newer versions. Battery life is up to 18 hours, and it supports fast charging. The Sport Band is made from high-performance fluoroelastomer.

Model

MNVJ3LL/A

Case

45mm Midnight aluminum

Band

Midnight Sport Band, S/M, fluoroelastomer

Connectivity

GPS + Cellular; GPS/GNSS

Display

Always-on Retina LTPO OLED, 396 x 484 pixels, up to 1,000 nits

Front glass

Ion-X (aluminum models)