Smartwatches have become an integral part of a lot of our lives. Whether you’re on a fitness journey or want to keep a closer eye on your health, they can be a very helpful tool. Just about all smartwatches can track your activity level, sleep patterns, heart rate and much more. But picking one can be tricky. A great option is the Amazfit T-Rex 3 Military smartwatch, but I wouldn’t consider it cheap. 

Thankfully, Amazon Prime members can score this smartwatch for a record-low price of $190. This is $10 less than the previous record low of $200. But again, you must be a Prime member to score this deal. If you’d rather buy one from Walmart or you’re not a Prime member, it’s on sale there, too. However, it’s only down to $200, which is $10 more than it is at Amazon. 

The Amazfit T-Rex 3 Military smartwatch has a lengthy 700-mAh battery that can last for over three weeks on a single charge with regular use and an impressive 13 days with heavy use. This is considerably longer than its competitors. The military-grade rating means it can handle 10ATM, or up to 328 feet underwater. This watch can track also track over 150 different activities, both in and out of the water. And don’t worry if you’re training outside, the 1.5-inch AMOLED screen with 2,000 nits of brightness is visible no matter how sunny it is outside. 

The built-in Zepp assistant gives you full voice control. The Zepp assistant can also give you advice on your workouts. For example, if you’re preparing for a marathon, you can tell the watch and it will help build you a personalized workout plan. You can also tell it you want to work on certain body parts like abdominals or biceps. It’s almost like having a built-in personal trainer. 

Smartwatches don’t come cheap. If you’re looking for something a bit more affordable, take a look our our favorite budget smartwatches of 2025. 

SMARTWATCH DEALS OF THE WEEK

Deals are selected by the CNET Group commerce team, and may be unrelated to this article.

Why this deal matters

Prime members have a chance to score an exclusive discount on this Amazfit T-Rex 3 Outdoor smartwatch. Previously, we saw this watch come down to $200 a few times, an $80 savings with this most recent time being this past Prime Day sale in July. But this is the first time we’ve seen it go under $200. If you’re a Prime member, don’t miss your chance to grab it at a record-low price. If you’re not a Prime member, you can score one at Walmart for $200.