Price includes warranty. Phone is £79.62 but I can't seem to remove the warranty. Even still this is the best price available.
UMI make good phones. I had the UMI Super for a couple of months and liked it a lot.
This will run vanilla Android which is a bonus as most Chinese phones are heavily skinned and some people struggle with this.
Has 4G band 20/800 which is a bonus.
GSM: GSM 850 / 900 / 1800 / 1900
3G: HSDPA 850 / 900 / 1900 / 2100
4G: LTE 20(800) / 3(1800) / 1(2100) / 7(2600)
SIM Type: Dual micro SIM
OS: Stock Android 6 Marshmallow
Display: 5.0 inches, 720 x 1280 pixels IPS 2.5D display with dual Dinorex T2X-1 scratch/shock resistant glass protection
Sensors: Accelerometer, Proximity
Build: Metal frame with diamond electroplating
Colours: Black. Gold. White
Processor Type: 64-bit Octa-Core 1.5 GHz
Processor Name: Mediatek MT6753
Graphics Processor: ARM Mali-T720 MP3
RAM: 3 GB
Internal Storage: 16 GB
External Storage: MicroSD card up to 128 GB (dedicated slot)
Rear: 8 megapixel autofocus camera with LED flash
Video recording: 1080P
Front-facing: 2 megapixel camera
Music Support: mp3, aac, aac+, eaac+, amr
Video Support: mpeg4, h.263, h.264
FM Radio: Yes
WiFi: Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot
USB: microUSB v2.0
Battery: Non-removable Li-Polymer 2,650 mAh