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Best smartwatches

Shortlist and buying guide · the ranked board is on its way

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What to look for

Pick one that works with your phone; battery life ranges from a day to a fortnight.

Models worth comparing

From manufacturers' specifications and published UK reviews, read on 6 October 2026. Not tested by us. In no particular order: these are not ranked, and we do not say which is best until the customer ratings are in.

Budget

Amazfit Active 2

Cost-conscious buyers who want a classic-looking watch with GPS, maps and battery life measured in days rather than hours.

  • Claimed 10 days of typical use, or up to 19 days in battery saver mode
  • Built-in GPS with downloadable maps and turn-by-turn directions
  • Bluetooth calls and Zepp Flow voice control, with no hidden subscription fees in the Zepp app

Watch out for: Contactless payments and sapphire glass are only on the dearer Premium (NFC) version.

Display
AMOLED, 466 x 466
Battery (claimed)
Up to 10 days typical use
GPS
Built in, five satellite systems
Water rating
5ATM
Payments
Zepp Pay on Premium (NFC) version only

Check price on Amazon

Sources: Amazfit UK product page · TechRadar review

Mid-range

Samsung Galaxy Watch9

Android phone owners, Samsung Galaxy users above all, who want a polished all-rounder with thorough health and fitness tracking.

  • Snapdragon Wear Elite processor with Google Gemini built in
  • Sapphire crystal display rated up to 3,000 nits
  • Dual-frequency GPS, plus ECG and blood pressure tools when paired with a Galaxy phone

Watch out for: Battery life is short, with Trusted Reviews' 40mm sample needing a charge every day, and it cannot be used with an iPhone.

Display
Sapphire crystal, up to 3,000 nits
Battery
390mAh (40mm model)
GPS
Dual-frequency
Water rating
5ATM and IP68
Phone compatibility
Android 13 or later; some health features need a Samsung phone

Check price on Amazon

Sources: Samsung UK product page · Trusted Reviews review

Premium

Apple Watch Series 12

iPhone owners who want the most complete everyday smartwatch, with in-depth heart, sleep and recovery insights.

  • New Health Sensing System with S11 chip for more frequent heart monitoring and a daily readiness score
  • ECG app, sleep score, and sleep apnoea and hypertension notifications
  • Rated WR 50M and IP6X, with 5G cellular versions available

Watch out for: Claimed battery life is still up to 24 hours, so expect to charge it every day.

Display
Always-on LTPO3 OLED, 42mm or 46mm
Battery (claimed)
Up to 24 hours
GPS
Built in (GPS and GPS + 5G models)
Water rating
WR 50M, IP6X dust
Chip
S11

Check price on Amazon

Sources: Apple UK product page · Tom's Guide review

Pro

Garmin fēnix 9 Pro

Serious runners, hikers and multisport athletes who want a rugged titanium watch with maps and long battery life.

  • Titanium case and AMOLED display rated up to 3,000 nits
  • Multi-band GPS with SatIQ, plus preloaded road, trail and ski maps
  • Built-in LED torch; inReach versions add satellite messaging and SOS

Watch out for: It is very expensive, the battery drops quickly in GPS workouts unless you use Max Battery mode, and satellite messaging needs a paid inReach plan.

Display
AMOLED, up to 3,000 nits
Battery (claimed)
Up to 10 days (43mm) to 31 days (51mm) in smartwatch mode
GPS
Multi-band with SatIQ
Water rating
10 ATM
Sizes
43mm, 47mm, 51mm

Check price on Amazon

Sources: Garmin UK product page · TechRadar review

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