1. Shop by category
  2. Phones
  3. Smart Watches
  4. Apple Smart Watches

Apple Watch Series 4 40mm Aluminium Case

Rating 4.5 72 reviews

According to Apple, the Series 4 represents "a fundamental redesign and re-engineering of Apple Watch." As a result, watch out for a lot of very cool changes, from the curved corners to the all-new and larger display.


A MUCH bigger display

The Series 4 provides lots to talk about but it's the display that is capturing the most attention. The narrow borders deliver a viewing area that’s over 30 per cent larger! The curved corners match the radius of the case, allowing for images and the touch surface to almost extend to the very edge of the screen.


Bigger display means new interface

Because of the bigger display, the design of the interface has been remodelled with the new Infograph watch face now capable of handling eight complications, allowing you to do more and see more at a glance.


Never skip a beat

The optical heart sensor has always been a feature of the Apple Watch, but in the Series 4 it can now detect if your heart rate falls below a specified threshold for a period of 10 minutes, and activates a low-heart-rate notification as a result.


More than just a processor

The Series 4 is a complete SiP a System in Package. This means the entire system is fabricated onto a single component with some incredible capabilities crammed into that small device.


It sounds better

The Apple Watch Series 4 boasts improvements in virtually every sense, and that includes a speaker that's 50 % louder for enhanced audio quality for things like Siri and the Walkie-Talkie function. Meanwhile, the microphone is now on the other side of the watch to minimise echo when making phone calls.

A newer model Apple Watch Series 5 40mm Aluminium was released in September 2019.

Manufacturer: Apple
nfm.com
7 years ago

Worthy upgrade

I owned the Apple Watch series 3, and the series 4 is a lot snappier, and just overall better. The design change was much needed- it's a beautiful little timepiece and I highly recommend opting for the pricier stainless steel option as it's way more scratch resistant (and looks really nice as well).
Read more on nfm.com
Verizon Wireless
7 years ago

Beautiful Watch!

This watch is everything you could ask for in a Smart Watch. Plus it's beautiful. Everything works quickly and accurately. I've tested my battery and it lasted 60 hours of use, which didn't include any phone calls or playing music but I checked email and messages often and tracked my activity on a...
Read more on Verizon Wireless
Target
7 years ago

Apple Watch Series 4 GPS + Cellular, 40mm Aluminum Case

This is by far the best Apple Watch yet. If you have been contemplating buying one, now is the time. The screen has adequate realistate. Has a very good display and chocked full of useful features. The ECG feature works pretty good. The health apps are nice. Overall a very nice watch.
Read more on Target
HSN
7 years ago

I am 64 years old and I have been falling every once in a while. I feel better knowing I can get help if I cant get up. They have encouraged me to start walking to get healthier. I can track everything on it. I love the health app.
Read more on HSN
ABT Electronics
7 years ago

The second best electronic device purchase ever!

This beautiful and well-made device is a wonderful piece of art and superb engineering! - I have the black stainless steel case model. It combines a multitude of functions, including monitoring heart-rate, electrocardiograph, multiple exercise functions and calorie-burn, breathing etc.
Read more on ABT Electronics
Cult of Mac
7 years ago

Apple Watch Series 4 Aluminum (40mm, Silver) - Excellent review

I have a new best friend. It’s the Apple Watch Series 4. Boy, do I love this miraculous little machine. The new Apple Watch really is wonderful. As with everything else, speed makes it so much more fluid and seamless. The display is gigantic and awesome!
Read more on Cult of Mac
Appliances Direct
7 years ago

Apple?Watch Series?4 GPS?+?Cellular 44mm Gold Stainless Steel Case with Stone Sport Band

Pros:
  • its awesome and looks even better now its larger
Cons:
  • lack of apple genuine straps
Read more on Appliances Direct
nafisa.co.za
7 years ago

The Apple Watch Series 4 is the first over-the-counter consumer product that can be used for an electrocardiogram reading. At present this heart-monitoring feature is approved for the US market only, but it will notify you if your heart rate is too high or too low.
Read more on nafisa.co.za
pricespy.co.nz
7 years ago

My first Apple Watch, and it has been sitting on my wrist 16 hours a day since I bought it - a great gadget! Easy to check notifications without having to pick up the phone, and to keep track of training and movement makes the watch a gadget that is both useful and fun!
Read more on pricespy.co.nz
CNET
7 years ago

The best smartwatch adds ECG, too

The Apple Watch Series 4 is the fastest, most connected and best overall smartwatch around, but its battery life and watch face options often fall short of the competition.
Pros:
  • The Apple Watch Series 4 offers a larger, crisp display that shows more with less bezel, super fast speed and a louder speaker. It adds high and low heart-rate detection, fall detection with SOS trigger and an FDA-cleared ECG app for more detailed heart readings.
Cons:
  • Starting prices are higher than last year. Battery life still won't last past two days. Watch face options are still very limited in choice and function. It only works with iPhones.
Read more on CNET
4.5 from 72 reviews
5
54.0%
4
35.0%
3
3.0%
2
0.0%
1
5.0%

Shopping tips direct to you

Occasionally we will send newsletters including exclusive offers, the best discount codes, top shopping tips and awesome competitions. The PriceMe newsletter will help you discover new products and services, compare prices, browse for products and redeem coupons from a range of service providers and online stores. The PriceMe newsletter gives you everything you need to simplify the shopping experience.

Connect with us

Copyright © Global Compare Group Limited t/a PriceMe 2026