Smartwatches in 2025 are essential for UK buyers, merging fitness tracking, notifications, and style—perfect for workouts or workdays. At PrimeRater.com, we’ve scoured Amazon UK to bring you the best smartwatches over £100—Apple Watch Series 10 (£399.00), Samsung Galaxy Watch 7 (£289.00), Garmin Venu 3 (£429.00)—and a budget standout under £100, Fitbit Versa 4 (£179.00, often £99.00 on sale). These shine in March 2025 for tech, durability, and UK value. Here’s why they’re top picks, with specs and ratings from Amazon UK.
Why £100+ for a Smartwatch?
Spending £100+ unlocks advanced health tools (ECG, SpO2), longer battery life, and premium builds—budget options lag here. Amazon UK’s Electronics Best Sellers (March 2025) spotlight Apple and Garmin for seamless integration and fitness depth. Our budget pick proves you can score value, but £100+ models dominate for serious users.
Top 3 Smartwatches Over £100 on Amazon UK 2025
Our top trio over £100 blends price, performance, and UK appeal. Prices and ratings are estimates—check Amazon UK for exacts.
Smartwatch | Price | Rating | Battery Life | Key Features | Best For |
---|---|---|---|---|---|
Apple Watch Series 10 | £399.00 | 4.7/5 | 18hrs | Depth gauge, ECG, iPhone sync | Apple fans, style |
Samsung Galaxy Watch 7 | £289.00 | 4.6/5 | 40hrs | BioActive sensor, Wear OS, rugged | Android users, battery |
Garmin Venu 3 | £429.00 | 4.6/5 | 14 days | AMOLED, sleep coach, multi-sport | Fitness pros, stamina |
- Apple Watch Series 10 (£399.00): Apple’s 4.7-star latest boasts a depth gauge (swimmers’ dream), ECG, and crash detection—iPhone pairing is flawless. At 18 hours, it’s slim (46mm option) and swim-proof (50m). UK buyers love its sleekness, but it’s iPhone-only and battery life is modest.

- Samsung Galaxy Watch 7 (£289.00): This 4.6-star Android star offers 40-hour battery, BioActive sensor (heart rate, body comp), and Wear OS apps. At £289, it’s tough (5ATM + IP68)—UK reviews praise its longevity, though non-Samsung phone setup can glitch.

- Garmin Venu 3 (£429.00): Garmin’s 4.6-star gem lasts 14 days, with AMOLED display, sleep coaching, and multi-sport tracking (runs, golf). At £429, it’s robust—UK fitness buffs call it “data gold,” but music sync can stutter.

Best Budget Smartwatch Under £100: Fitbit Versa 4 (£179.00, often £99.00)
The Fitbit Versa 4 (£179.00, often £99.00 on sale) scores 4.5 stars on Amazon UK, tracking steps, sleep, and heart rate with 6-day battery life. At 50m water resistance, it’s straightforward—daily readiness scores pop—but skips ECG or third-party apps. UK buyers snap it up at £99, dubbing it “fitness for less.”

How We Picked These Smartwatches
At PrimeRater.com, we rate on:
- Features: Health, battery, usability—verified by Amazon UK reviews.
- Value: £100+ justifies tech; under £100 punches above weight.
- Ratings: 4.5+ stars from UK buyers.
- Availability: Live on Amazon.co.uk, March 2025.
Your 2025 Smartwatch Choice
Apple (£399), Samsung (£289), Garmin (£429), or Fitbit (£99)—these Amazon UK leaders fit every wrist. Click our links (we earn a commission) to buy. What’s your priority—fitness or battery? Tell us below!
Last updated: March 2025
Please be aware of price, product and availability!