The GTR 4 is compatible with both Android and iOS devices and features a battery life of up to 14 days. It can also make calls via Bluetooth and track your activity in over 150 sport modes. You read that right, 150 sport modes. If that doesn’t sound enticing enough, the GTR 4 also has Alexa built-in. So you can control your Alexa-powered smart devices. Should you have any laying around your home or decide that you want to pick some of those up as well. The Amazfit GTR 4 comes with a 1.43-inch AMOLED display. And it can be used for music storage and playback. As well as for storing loyalty and membership cards. If you’d like something a little less expensive or just something more simple for your tracking needs, much of Amazfit’s product list is on sale. Including the Amazfit Band 7, and Amazfit Band 5, discounted down to $39.99 and $29.49 respectively. Amazfit is also discounting some of its other watches. Like the GTS line, the Amazfit Bip, and even its smart body scale which is down to $34.99. The best part about Amazfit’s lineup is that there is absolutely something for every price point. Especially now with all of the Prime Early Access sale prices. You can see all of the deals by clicking here. Amazfit GTR 4 & More