Apple Watch Series 3 Specs and Features

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Apple Watch Series 3 specs and features include music storage, fitness tracking with smart coaching notifications a heart rate monitor and both GPS or GPS & Cellular models. may earn a small commission when you buy through links on the site we appreciate your support. Affiliate Disclosure
Last updated on April 19, 2024 2:03 pm
Apple Watch Series 3 Specs and Features
Apple Watch Series 3 Specs and Features

Editors Review

With decreasing prices on the Apple Watch Series 3 since the release of the series 4 and 5 devices. It truly makes this one well worth the price, for anyone interested in moving to their first smartwatch, or moving up from a fitness tracker, or simply on a tight budget. Apple Watch Series 3 specs and features can help you achieve your fitness goals with smart coaching notifications, track your workout and even pair to compatible gym equipment using Gymkit, it also has emergency notifications that work in conjunction with the heart rate monitor. The cellular version gives you the capability to ask Siri or take a call without needing your phone on your run.

In comparison to other smartwatches in this price range such as the Samsung Galaxy Watch Active, it comes with a generous storage for music, 8GB on the 28mm version and 16GB on the 42mm model.

Workout readiness – The Series 3 watch has many great features for working out. It has a top of the range heart rate monitor that monitors your resting heart rate and recovery heart rate, allowing you to monitor your fitness progress. Gymkit makes it easy to sync up to gym equipment so that you can monitor your workouts. The series 3 comes packed with apps for all general workouts. Oh, and did I mention its waterproof.

Common questions on the Apple watch series 3 answered:

Does the Apple watch series 3 have ECG ?

Apple’s watch series 3 doesn’t have the electrical heart rate sensor built-in that is required to carry out an electrocardiogram, this feature is available on Apple’s Watch Series 5.

Does the Apple watch series 3 track heart rate?

The Series 3 has an optical heart rate sensor that allows you to track your resting and workout heart rate and set notifications, it’s highly accurate and provides real-time and Health app data. The watch can also be paired with external heart rate monitors that support Bluetooth Smart connectivity.

Does the Apple Watch Series 3 track sleep?

None of Apple’s watches have a sleep tracking app pre-installed. But it is possible to download a third-party app from the app store.

Does apple watch series 3 have wireless charging?

No – The watch has a magnetic charger and does not support wireless charging natively.

Can I store music on apple watch series 3?

Yes – There is 16GB of storage capacity in the GPS/Cellular edition and 8GB on the GPS version.


Specification: Apple Watch Series 3 Specs and Features




Watch Series 3

Wearable Type


Digital Assistant



LTPO OLED Retina display with Force Touch

Case sizes

38mm, 42mm


Bluetooth 4.2, LTE and UMTS (on GPS+Cellular), Wi-Fi 802.11b/g/n 2.4GHz

Heart-rate Monitor






Water Resistant




Charge Time

2 Hours

Battery Life

18 hours (less with BT/GPS/Cellular)

NFC Payments


Music Storage

16GB (on GPS + Cellular), 8GB (standard version)




Accelerometer, Altimeter, Ambient Light Sensor, Gyroscope

Workout Wearables
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