BLU G91 vs Doogee S51

BLU G91

Doogee S51

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 12, 17, 28

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
HSDPA speed

42.2 Mbps

-
HSUPA speed

11.5 Mbps

-
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE, Cat7, 301 Mbps download, 102 Mbps upload
GPRS

No

Yes
EDGE

Yes

Yes

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 16 MP, 30x digital zoom

(wide) , 20 MP, f/1.8 , 90˚ , 1/2.9" , 1.25 µm
(ultrawide) , 5 MP

(depth) , 2 MP, f/2.4 , 1/5" , 1.75 µm
(macro) , 2 MP
(depth) , 2 MP
Primary camera resolution

-

5184 x 3840 pixels
Primary camera video

1080p@30fps

1080p
Primary camera flash

LED flash

quad-LED flash
Camera features

-

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

-

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes