Review on DOOGEE S88 Plus (Official) Rugged Smartphone Unlocked - 10000mAh Battery, 48MP Triple Camera, Waterproof - 8GB + 128GB Android 10.0 IP68/IP69K - Black by Anastazja Kowalik ᠌

Most likely, a design error, or a disease of all armadillos - the connection practically does not catch. I tested it on 3 different routers with 5 different phones, where a phone without armor catches the maximum Wi-Fi signal, this instance caught a maximum of 2 sticks out of 5. The same thing about mobile communications when you enter a small-scale high-rise building or some a warehouse with a lot of racks and communication boxes barely enough to talk on the phone, you can only talk about using mobile Internet indoors if you are standing near the window. The antenna is completely missing. Mobile network performance was tested in addition to 2 other phones. One was Xiaomi Redmi 9, the second was iPhone 10. The unarmored brothers had no problems with mobile communications. While this model did not actually work indoors.