I review Garmin watches for a living – here are my 12 picks of the Amazon Prime Day sales

Save $40: Though the Garmin Forerunner 745 is one of the older models in the range, its age really helps with price drops at Prime Day - plus it's available in three different colors. But just because it's a few years old, that doesn't mean it doesn't pack a punch with smart training insights - with compatibility for both iOS and Android smartphones.

Read our full Garmin Forerunner 745 review

The Garmin Forerunner 955 was rated an impressive 5 stars in our review, and although it's a few years old now, it's a steal at this price. Its memory-in-pixel display is a battery-efficient, low-power display that's still eminently readable in the brightest sunlight, and it's stuffed full of incredible fitness features.

Save a massive 40% on the Garmin Venu Sq 2, Garmin's answer to the Apple Watch, in Slate and Shadow Gray. With up to 11 days of battery life compared to the Apple Watch's 18 hours, it'll last for a full week between charges including multiple GPS workouts like running or cycling.

The smaller 41mm version is unavailable here, but you can get the 46mm model in black for just $249.99, with space for up to 500 onboard songs so you don't need to take your phone with you on the run. Garmin's Training Readiness score, advanced running metrics and route creation via Garmin Connect are powerful tools to aid your training.

The smaller 40mm Garmin Instinct 2S, perfect for hikers and runners with slimmer wrists. This is the Solar model, which lengthens its life when in sunny conditions for around three hours. Perfect for weekend warriors looking to enjoy the summer.

Lowest price: Save $350 on one of Garmin's best watches and get all the state-of-the-art metrics. As well as packing all the same fitness tracking features as the Garmin Epix (Gen 2), the Pro model includes a new topographical maps feature, which displays real-time weather information and a heart rate sensor with improved accuracy. It still sits at the top of the budget range for a Garmin watch, but if you're a serious athlete and need a fitness tracker that can do everything, this is a model to opt for if money isn't an object.

Read our full Garmin Epix Pro review

Lowest price: Our best cheap Garmin watch is now even more affordable option this Prime Day, matching its Black Friday price from last year. With its upgraded AMOLED display the Vivoactive 5 makes a solid choice for a new fitness watch if you need an all-rounder when it comes to health and well-being tracking. Though other models in Garmin's range can be better alternatives if you want the specifics, it offers over 30 exercise tracking modes which does more than scratch the surface.

Read our full Garmin Vivoactive 5 review

Save 33% on Garmin's slimmer lifestyle watch in its Ivory colorway. With up to 11 days of battery life, personalized sleep coaching, and even automatic nap detection, it'll tell you exactly how and when to rest for best results, alongside tracking 30 different kinds of workouts.

Garmin's larger 46mm Forerunner 255 is a fitness powerhouse, with loads of great features. it was one of Garmin's first watches to introduce its Morning Report functionality, with a sleep report, weather prediction and suggested workout for the day based on your recovery information and goals. Save £84.

The stripped-down, more affordable, smaller 43mm Forerunner 165 is the best Garmin watch for intermediate or beginner runners. Even with the Prime Day discounts, the larger, feature-stuffed watches are probably going to be unnecessary purchases, but for those of you tacking 5ks up to half marathons, this Forerunner is perfect for the job.

A 20% discount on the Instinct 3, a watch brand new for this year, and perfect for those of you who love the great outdoors. New features to the Instinct line like an AMOLED screen and built-in LED watch keep things bright on dark campsites or night runs on empty roads, while you get up to an incredible 24 days of battery life.

Garmin's cheapest offering this year, the Vivosmart 5 fitness tracker is a stripped-down Garmin experience for tracking steps, Body Battery energy levels, sleep quality and fitness goals through the Garmin Connect app. You don't have on-wrist, full-color maps or other advanced features, but it's a great choice for passive tracking.