Xiaomi is one of the best OEMs in the world.
I am using a Mi Max presently which i can say its one of the largest phones in the world



......... Xiaomi Mi Max.................
SCREEN : 6.44"
BATTERY: 4850mAH
CAMERA : 16mp/5mp PDAF
FINGERPRINT SENSOR: YES
INFARED REMOTE: YES
DUAL APP: YES ( you can have 2 WhatsApp, bbm, etc any app)
SECOND SPACE : YES (you can create another user on the phone hiding all your information in 1)
GYROSCOPE : YES
O.S: MARSHMALLOW upgradable to Nougat
RAM: 3GB
ROM: 32GB
4G LTE: YES
FAST CHARGER: YES

YOU CAN CHECK gsmarena for other features of the phone.
It is quite BIG from the model name mi-MAX but feels light at hand.

I got mine from @xiaomi_ng on IG they are having sales and you can get it as low as 105k. call +2347016495262 whatsapp also

I have MI max prime for sale.4gig ram ND 128gig ROM. mint used, just a month old.
no fault at all
whatsapp me if interested 08101123136.

MI max prime still available for sale