Doogee S99 vs vivo X51 5G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
5G network

-

5G band 1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, 391 Mbps download, 150 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, TPU, polycarbonate, faux leather

Glass front, glass back, aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

172 mm

158.5 mm
Width

82 mm

72.8 mm
Thickness

15.5 mm

8 mm
Weight

190 g

181.5 g
Waterproof

IP68/IP69K (1.5m for 30 mins)

-
Dust proof

IP68/IP69K

-
MIL-STD-810H

Yes

-
Colors

Black, Gold

Gray

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 108 MP, f/1.9 , 1/1.52" , 0.7 µm

(wide) , 48 MP, f/1.6 , 1/1.2" , 0.8 µm
(night vision) , 64 MP, f/1.8

(periscope telephoto) , 8 MP, f/3.4 , 135 mm, 1/4.0" , 5x optical zoom
130˚ , (ultrawide) , 16 MP, f/1.8

(portrait) , 13 MP, f/2.5 , 50 mm, 1/2.8" , 0.8 µm, 2x optical zoom
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
Primary camera resolution

12000 x 9000 pixels

8000 x 6000 pixels
Primary camera video

1440p@30fps, 1080p@30fps

4K@30fps, 1080p@30fps, gyro-EIS
Primary camera flash

dual-LED flash

dual-LED dual-tone 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

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

-

117
DxOMark zoom

-

67
DxOMark video

-

102
DxOMark camera score

-

114

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 32 MP, f/2.0 , 1/2.8" , 0.8 µm

(wide) , 32 MP, f/2.5 , 1/2.8" , 0.8 µm, 26 mm
Selfie camera resolution

6560 x 4928 pixels

6528 x 4896 pixels
Selfie camera features

Face unlock, HDR

Face unlock
Selfie camera video

1080p@30fps

1080p@30fps
DxOMark photo

-

82
DxOMark video

-

78
DxOMark camera score

-

81

Connectivity
WLAN

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

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

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes (market dependent)

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

6000 mAh

4315 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes, 33W (45% in 30 min)

Vivo FlashCharge (57% in 30 min)
Reverse charging

Yes

-
Wireless charging

Yes, 15W

-
Talk time 4G

28 h

-
Standby time 4G

432 h

-
DxOMark autonomy

-

45
DxOMark charging

-

80
DxOMark efficiency

-

68
DxOMark battery score

-

60