Review on 💪 MGcool B3 / B4 Fitness Tracker Smart Band: Keep Track of Heart Rate, Activity, Sleep, and More! by Dragan Nelson

I didn't have it until 24 hours later but I already know I'm going to send it back for a refund. Half of the content in the app doesn't work and the translation is terrible? It's not at all accurate for step counting, and the sleep monitor is, shall we say, far from it. He claims I woke up once but actually my grandson works with me at least 4 times. I had a very restless and painful night with little sleep but reported 5 1/2 hours of deep sleep. I gave 2 stars for the heart monitor and the time and date was good. As the saying goes, you get what you pay for and I should have known! I think I'll spend a little more for something that at least does what it promises. Don't waste money on it!