Seems an interesting device.
Water/Dust/Shock proof phone.
Not the best specs in the world but would be perfect for spare/work/festival phone.
I've not had a HomTom phone before but they are a division of DooGee who build generally decent enough devices.
Has a pretty good sized battery for the screen size, will easily get you through to bedtime on a single charge.
Homtom HT20 Android 6.0 4.7 inch 4G Smartphone MTK6737 Quad Core 1.3GHz 2GB RAM 16GB ROM Fingerprint Scanner Waterproof Bluetooth 4.0 HotKnot
Display: 4.7 inch HD screen
CPU: MTK6737 1.3GHz Quad Core
System: Android 6.0
RAM + ROM: 2GB RAM + 16GB ROM
External Memory: 64GB
Camera: Back cameras 8.0MP (SW 13.0MP) with AF and flashlight + front camera 2.0MP (SW 5.0MP)
Battery: 3500 mAh
Feature: Smart gesture, Wake-up gesture, Screenshot, Fingerprint scanner, HotKnot, Waterproof (IP68)
SIM Card: Dual SIM dual standby, dual micro SIM cards
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 900/2100MHz
4G: FDD-LTE 800/1800/2100/2600MHz