It’s durable – water resistant up to 50m with tempered glass protecting the display – but also comfortable and supremely attractive thanks to the sleek aluminium frame and matte silver finish. Roaming: using your home data plan to roam in Zone A is included in all of our Pay Monthly plans. For roaming in other destinations, charges will apply depending on which plan you are on. You must have a 5G enabled device on the Vodafone 5G network, a Vodafone 5G plan and 5G coverage in the area that you are in. Coverage may be affected by a number of factors. Find out more about our 5G network Put simply, Apple’s smartwatches continue to set the gold standard for wearable technology, and the Series 3 currently offers the best value of anything in the California-based company’s range.

To keep smartwatches slim, the battery tends to be small – often as little as 200mAh. To put that into perspective, most smartphones have batteries that are 3,000mAh or more. Generally though, the OS doesn’t matter too much. Samsung watches use the company’s own Tizen software, while smartwatches by Fitbit use the company’s own code. With most of the smartphones in the world running iOS or Android, compatibility shouldn’t generally be a problem, but for best results it always helps to match company to company (i.e Apple Watches work best with iPhones, and Samsung watches love to be matched to a Galaxy.) How long should the battery last? Unlimited Bundle: An Unlimited Pay as you go Bundle lasts for 30 days. Your bundle will automatically renew every 30 days if you have enough credit. To opt out call 2345. Includes unlimited data and unlimited minutes and texts: minutes to standard mobiles and landlines (UK: 01, 02, 03) and standard texts (excluding MMS) to use in the UK and Zone A. Unlimited Bundle terms, exclusions and destinations verifyErrors }}{{ message }}{{ /verifyErrors }}{{ For Mobile: lets you select a monthly Device Plan Credit Agreement (3-36 months) with a monthly Airtime Plan. Phone Plans over 12 months require a 24-month Monthly Airtime Plan. You can pay off your Device Plan early, and if you do, you can then keep your Airtime Plan on a 30-day contract or leave. If your Airtime Plan ends for any reason, you will need to keep on paying your monthly Device Plan (either in full or monthly) For Smartwatches: lets you select a monthly Device Plan Credit Agreement (over 3-36 months) with a monthly Connectivity Plan. Watch Plans over 12 months require a 24 month Connectivity Plan. You can pay off your Device Plan early, and if you do, you can keep your Connectivity Plan on a 30-day contract or leave. If your Connectivity Plan ends, the Device Plan is still payable (either in full or monthly). Watch Plans require a Vodafone pay monthly airtime plan and a Connectivity Plan (via Vodafone OneNumber) Smartwatch: requires a) Vodafone pay monthly Airtime plan, and b) 12 or 24 month Connectivity Plan (via Vodafone OneNumber). Watch Plans over 12 months require a 24 month Connectivity Plan. Terms apply Trade-in Bonus: Available when we're running a Trade-in Bonus promotion, where you could get an additional bonus on top of the trade-in value for the phone you're trading in, when you buy a new phone. Eligibility for the bonus and the bonus value may vary depending on which phone you're trading in and which new phone you're buying. Please see our Trade-in Bonus terms and conditions, for more information.

If you’re a runner in need of a smartwatch for your workouts, the GT 2e is an absolute bargain. Just bear in mind that it’s better paired with Android devices, as you’re able to load it with music. At present, it’s also not possible to sync the GT series of smartwatches with Strava.For Laptops / Tablets: lets you select a monthly Device Plan Credit Agreement (3-48 months) with a 24 month Data Plan. You can pay off your Device Plan early, and if you do, you can then keep your Data Plan on a 30-day contract or leave. If your Data Plan ends for any reason, you will need to keep on paying your monthly Device Plan (either in full or monthly)

Fitness fanatics preparing for an event might want to splash out on a more advanced training tool, but as a great-value hybrid wearable, the Amazfit GTR 4 can’t be beaten.

The verdict: Kids’ smartwatches