This affordable Garmin Fenix alternative is even cheaper at Amazon – I want it

(Image credit: Amazfit)

published 20 March 2025

Garmin’s Fenix series is renowned for being one of the best smartwatches for outdoor enthusiasts, thanks to its rugged durability, multi-sport functionality, and long battery life. But, despite their brilliance, we all know a Fenix comes with a hefty price tag. Good thing I’ve spotted this cheap Fenix alternative, which has just been made even cheaper on Amazon, and I'm seriously considering it myself.

Right now you can snag the T-Rex 3 from Amazfit for £286.16, reduced from £328.90 – now, that’s significantly cheaper than any Fenix deal you’ll stumble across. We recently reviewed the T-Rex 3 and gave it a solid four-star rating, with our reviewer noting it packs many of the same Fenix features but at a considerably lower price point.

This includes a super long battery life (up to 40 days in saver mode), offline maps, dual-band GPS, and a solid construction that can endure extreme environments, making it ready for any adventure you throw at it. It’s even passed 15 MIL-STD-810G tests, so it can withstand extreme hot and cold temperatures, shock, and water depths up to 100 metres.

On top of this, it’s equipped with over 170+ sports modes (including skydiving for you adrenaline junkies), a ton of health monitoring features, from heart rate to stress tracking and SpO2 monitoring. There’s even a night function, which includes a red light flashlight and night safety light. All of this (and more) for less than £300? A bargain, if we say so ourselves.

Bryony’s T3’s official ‘gym-bunny’ and Active Staff Writer, covering all things fitness. She recently completed her Level 3 PT qualification with the PFCA to bring a deeper understanding of training techniques, fitness trends, and wellness advice to her writing. In her spare time, you will find her in her natural habitat - the gym - where her style of training is a hybrid of bodybuilding and powerlifting. Bryony loves writing about accessible workouts, nutrition and testing innovative fitness products that help you reach your fitness goals and take your training to the next level.