ZDNET's key takeaways The Kospet Tank M3 Ultra and T3 Ultra 2 are available for just $159.99 retail.
The watches are have vibrant displays, pass durability standards, and have long battery life.
Updates take a long time, and the heart rate sensor measures a bit high. View now at Amazon
For Prime Day, Amazon has the Kospet Tank T3 Ultra 2 watch on sale for just $128 ($32 off), making the already affordable wearable more so.
Also: The best Prime Day deals you can shop now
With so many new wearables on the market, I spend most of my time testing watches from popular brands. But some lesser-known brands have interesting products that deserve attention, as well.
Case in point is the latest two Tank models from Kospet, the M3 Ultra and T3 Ultra 2, two models that are basically the same watch with round and square form factors. I've been testing them for the past month or so, and have been impressed with the hardware's look, feel, and quality, especially for their low cost: just $160.
Also: The best smartwatches you can buy: Expert tested
Let's break down the differences between the two. The Kospet Tank T3 Ultra 2 (the round one) looks like a traditional rugged smartwatch with a brilliant AMOLED display. There are four physical buttons on the watch, and it supports touchscreen navigation. The watch's bezel and side case are made of metal, which makes it feel durable and well-made. Additionally, the side buttons are textured and easy to activate.
The internal components and features of the Kospet Tank M3 Ultra are the same, but in a circular watch face reminiscent of the Apple Watch. It supports standard 22mm watch bands with quick-release pins and has comfortable silicone straps included with the watch.
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