I've used the gt021 going on 3 years now and it's amazing! It's been very useful and the magnet is super strong plus it works in freezing cold weather! Im thinking of getting the nee one because this battery is so-so, but better than a lot of other models from other places, that's for sure!
thanks for your support, we just want to let you know GT-021 use 2G technology and use Tmobile 2G network, which will be sunset next year, so at that time, there will be no more 2G in USA, currently the newest technology is IoT tracker uses LTE, 4G, which is model GT-300S , thanks
ablegrid support team quick to offer help. the gt021 gps tracker works fine so far.