Overview | Apple Watch Series 4
Redefine Wellness and Connectivity
The Apple Watch Series 4 boasts a refined design with a slimmer profile and rounded corners, enhancing both comfort and style. With a variety of watch faces and bands to choose from, you can easily customize your watch to match your personal style.
Experience a new level of health, fitness, and connectivity with the Apple Watch Series 4. Redesigned and re-engineered, the Series 4 offers a larger display, advanced health monitoring, and enhanced performance—all in a sleek, modern design. Whether you're tracking your workouts, keeping an eye on your heart health, or staying connected with friends and family, the Apple Watch Series 4 is the ultimate companion for your active lifestyle.
Larger Display: The Series 4 features a 30% larger display than its predecessor, offering more space for apps, notifications, and customizable watch faces. The edge-to-edge screen is available in 40mm and 44mm sizes.
ECG Monitor: The built-in electrical heart sensor allows you to take an electrocardiogram (ECG) anytime, anywhere. The ECG app can detect irregular heart rhythms, providing critical health insights.
Fall Detection: The Apple Watch Series 4 can detect hard falls and automatically initiate a call to emergency services if you’re unresponsive, offering added peace of mind for you and your loved ones.
Heart Rate Monitoring: In addition to the ECG, the optical heart rate sensor continuously monitors your heart rate and alerts you to unusually high or low readings.
Fitness Tracking: Track your workouts with precision, whether you’re running, cycling, swimming, or practicing yoga. The Apple Watch Series 4 automatically tracks your activity and provides detailed metrics to help you improve.
GPS and Altimeter: Accurately track your outdoor activities with built-in GPS, and monitor elevation changes with the altimeter.
Water Resistance: Swim-proof up to 50 meters, making it perfect for pool workouts or open-water swims.
Siri Integration: With Siri, you can set reminders, send messages, check the weather, and more—just by raising your wrist and speaking.
Notifications and Calls: Stay connected with notifications for calls, texts, and apps directly on your wrist. With the cellular model, you can make and receive calls even when your iPhone isn't nearby.
Activity Rings: Keep motivated by closing your Move, Exercise, and Stand rings every day. The Activity app offers personalized coaching to help you reach your fitness goals.
Battery Life: Enjoy up to 18 hours of battery life, ensuring your Apple Watch is ready to go when you are.
What’s the difference between GPS and GPS + Cellular?
GPS
The Apple Watch Series 4 GPS lets you send and receive text messages, answer telephone calls and receive notifications when it’s connected to your iPhone via Bluetooth and Wi-Fi. The built-in GPS works independently of your iPhone for distance, pace and route mapping in workouts.
GPS + Cellular
The Apple Watch Series 4 GPS + Cellular has all the same great features as the above, as well as built-in cellular. It gives you the freedom to send and receive text messages, answer phone calls and even receive notifications when you don’t have your iPhone with you.
Other great stuff.
Resilient
Splash resistant
Gyroscope
Deliver real-time information in your app
Long lasting
Up to 18 hours of battery life.
Fast charge capable
Charge your battery up to 50% in 30mins
Faster WIFI
Bluetooth 4.2
Heart rate sensor
For your fitness needs
Cellular Feature
Send and receive calls, reply to messages, receive notifications, and more—even while you're away from your iPhone.
Why Choose Us?
Robotically tested
Intensive 90 point device check using cutting edge, industry leading robotics.
30 Day Refund Guarantee
If you change your mind or are not happy for whatever reason, you will always have 30 days to return your item for a full refund.
12 Month Warranty
Every single order comes with a free 12-month warranty as standard. There's also the option to extend this at checkout.
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What customers say about us
We do our best to provide you with the best experience ever
The best phone selling site by miles
The best phone selling site by miles. Super impressed with free packaging and recorded delivery pre paid label. Was kept constantly updated by email and text. Phone was tested, assessed and money in my bank literally in the same afternoon. Was given 3 times the amount I was offered by a certain company starting with MM. Great to chose from new, working or broken option. Will definitely tell everyone I know to use Grade Mobile Order number 215081
Jacks R
Excellent service
Excellent service , input my phone iemi which gave me a valuation around £40 more than competitors. I accepted the offer then a prepaid and tracked envelope arrived the next day . I posted it on a Saturday morning got a message 2 days later Tuesday to say received the phone and it was being checked and a few hours later I got another message to confirm their full offer no deductions which was great and funds arrived in my bank account same day . Process simple and straightforward would definitely recommend . Order 215174
Deryn Mayor
Great service
Great service, phone arrived, quote arrived within 4 hours, was offered more than expected, accepted and money was in my bank within 40 minutes, great service, thank you Order 214788
Clare
Happy Customer
Have to say, the process with Grade Mobile could not have been simpler. Very happy with you sending packaging and free post labels too. My original offer was downgraded slightly, and that's ok as my devices, although in my opinion were great, they were 7 and 5 years old. Very fast payment too. Thanks for making things easy. 214895 & 214897
Jonathan Miles
Great Speedy Service
Very good speedy service and they keep you updated. Will definitely use again and would highly recommend. 215144
Karen Newcombe
Good experience
#214886It took a while for my payment details to be accepted but other than that, an easy service to use.
Anonymous
I recently sent off my iPhone 13 Pro to…
I recently sent off my iPhone 13 Pro to Grade Mobile. I declined the original offer and gave them my opinion for what I thought my phone was worth. As it was the weekend, I had a new offer sent to me by Monday morning. This was close to the value I had suggested and therefore I accepted the offer. I received the money straight into my bank account within a couple of hours after accepting. Very good and speedy service. Highly recommend. Order number #214906
Josh Altwasser
Amazing service - speedy and efficient
Amazing service - really fast response and quick payment. Would highly recommend trading in your phone. Order no: 214963
Lucy Eden
The woman who helped me was so nice and…
The woman who helped me was so nice and really helpful and I’m so excited to have my new rented Apple Watch
Felicity Garside
I have nothing but praise for the way…
I have nothing but praise for the way this company dealt with me. Price offered was the price paid. Very quick and informative transaction. Kept updated throughout the process
Aali
Won’t be using anyone else again
I was originally nervous about using an unknown company, but after having a really bad experience with mazuma, I decided to try Grade, and I’m so glad I did. They were really upfront with how they grade phones so I knew exactly what I’d be getting and once they inspected it that was exactly the valuation I was given. Really happy with the valuation, but the turn around time was a couple of days longer than they said for quiet periods. But that’s absolutely fine. 215058
Elizabeth Scott
Received pre-paid postage packaging…
Received pre-paid postage packaging very quickly and the phone arrived at their warehouse within 2 days. Good communication and fair pricing.
itsgeorgiaeloise.com
Great efficient service
Great efficient service - good price and thrilled with my refurbished appearance which arrived like new.I received a small gesture from Grade Mobile for my time providing a constructive review, but it was not conditional on being positive
Ali
So fast and easy shopping with GRADE
So fast and easy shopping with GRADE! Fast credit check and delivery meant I had the phone in my hands just 3 days after ordering!!!Thanks GRADE! - GML222848
Charlie Michael Baker
Great and quick service. 215115
Was give best price for my old phone Communication was very good and payment was within minutes of me accepting their offer. 215115
Steven Harrison
Excellent customer service
They have excellent customer service, prompt to help and a pleasure to deal with. I bought two refurbished devices and both were in excellent condition. GM222854I received a small gesture from Grade Mobile for providing a constructive review' which was not conditional on being positive
Bridget B
Great experience
I have bought multiple phones from grade mobile and they have always been great. Any issues I experienced they were quick to resolve! Many thanks :)
Amelia Lidbetter
Selling your phone couldn’t be easier
Website was easy to navigate, the initial quote was favourable and when the report came through it detailed why the offer was lower. This shows the honesty of the grading as photos were provided. Even the postage was free including them sending me the packaging free of charge.I received a small gesture from Grade Mobile for providing a constructive review, but it was not conditional on being positive" which was good.Overall the whole experience was very positive.#214721#
rughead
Exceptional customer service!!
Order number: 214877- I recently used Grade Mobile to exchange my phone, and I couldn't be happier with the service. Shelley and Simon responded to my emails promptly, keeping me informed every step of the way. The ability to track which stage my phone was at was incredibly reassuring. Grade Mobile offered me better value than most other competitors. I am extremely satisfied and plan to exchange all my models with Grade Mobile in the future. I highly recommend them to friends, family, and everyone looking for a reliable phone exchange service.
ND
Received payment within 2 days
I had a very straightforward experience with Grade Mobile from start to finish. The entire process was easy to follow, and their team was incredibly helpful. Their customer support was excellent, answering my questions promptly. I received my payment within two days of them receiving my mobile, which was faster than expected. Overall, I’m impressed with their efficiency and reliability!
Sreekanth Punreddi
Order number 214735
Highly recommend, sent my phone off within 24 hours they acknowledged they had received it 24 hours later offer in, slightly less than what I wanted they upped it and money in account:) Very efficient would deal with them again.
Paul Beggs
The best experience I’ve had recycling my phone
Everything about this experience has been great: it was very quick, it was completely straightforward and most importantly of all, unlike other companies I’ve dealt with, they honoured the quote they gave me. All in all, a very satisfying transaction. Many thanks to the Grade Mobile people (order 214330)
Dorn
Great company to sell your phone to!!
Great company to sell your phone to!!I received my payout 2 working days after my mobile was sent to Grade mobile. The offer was the full estimated amount based on the condition of the phone which, given previous experiences hasn’t been the case with other companies who have bought mobiles from me! Communication was clear and quick and no problems at all with the service! I have been offered a small gesture from Grade Mobile for providing a constructive review, but it was not conditional on being positive.
Paul Williams
Simple and fast!
A very straightforward process from start to finish with very helpful and responsive support. Was quoted and paid within 2 working days which is excellent, overall a very pleasant experience!Order number: 214532
Kish
So easy and convenient
So easy and convenient. I sent a description and was given an offer which I accepted. Prepaid packaging arrived the next day. I posted this and had an email saying it had been received next day. They evaluated my phone and gave me another offer, still better than my provider offered. I accepted the offer and the money was paid into my account later that day. Excellent service.
Dawn
1000's of happy customers
Quality tech
Help save our planet
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FAQ
No - all our phones are SIM-Free and Unlocked for you to use with any network provider. However, we are able to provide one of our own SIM cards with your device. Just let us know, or select the option if available at checkout, you can choose your sim package at a later date.
You can cancel anytime within 30 days of the day you receive the product by written notice. If the device is brand new, it must be unopened when you return the device back to us, otherwise you may be subject to fees; best to check your contract or give us a call so we can go through your options with you. When you return the device you must ensure all pass codes and accounts such as iCloud and Google are removed before shipping the device back to us.
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