Doogee S99 vs Xiaomi Mi Mix Fold

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; CDMA2000 1xEV-DO
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, 34, 38, 39, 40, 41, 42
5G network

-

5G band 1, 3, 28, 41, 77, 78, 79 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 (CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, TPU, polycarbonate, faux leather

Glass front (folded), plastic front (unfolded), glass back (Gorilla Glass 5) or ceramic back, aluminum frame
SIM

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

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

172 mm

173.3 mm
Width

82 mm

69.8 mm
Thickness

15.5 mm

9 mm
Height unfolded

-

173.3 mm
Width unfolded

-

133.4 mm
Thickness unfolded

-

17.2 mm
Weight

190 g

317 (glass) / 332 (ceramic) g
Waterproof

IP68/IP69K (1.5m for 30 mins)

-
Dust proof

IP68/IP69K

-
MIL-STD-810H

Yes

-
Colors

Black, Gold

Black, Ceramic

Display
Display type

IPS LCD

Foldable AMOLED
Physical size

6.3 inches

8.01 inches
Resolution

1080 x 2340 pixels

1860 x 2480 pixels
Pixel density

409 ppi

387 ppi
Display colors

16777216

1073741824
Protection

Scratch resistant, Corning Gorilla Glass

Scratch resistant
Display features

-

HDR10+, Dolby Vision, 600 nits (typ), 900 nits (peak)
Cover display

-

AMOLED
Cover display physical size

-

6.52 inches
Cover display resolution

-

840 x 2520 pixels
Cover display features

-

90Hz, HDR10+, Dolby Vision, 650 nits (typ), 900 nits (peak)

Main camera
Camera type

Triple

Triple
Main camera

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

(wide) , 108 MP, f/1.8 , 1/1.52" , 0.7 µm, 80 mm
(night vision) , 64 MP, f/1.8

(telephoto/macro) , 8 MP, 3x optical zoom
130˚ , (ultrawide) , 16 MP, f/1.8

123 , (ultrawide) , 13 MP, f/2.4 , 1.12 µm
Primary camera resolution

12000 x 9000 pixels

-
Primary camera video

1440p@30fps, 1080p@30fps

8K@24/30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

dual-LED flash

dual 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

Autofocus, continuous autofocus, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus, stagger HDR, AI 2.0, night mode 2.0

Selfie camera
Selfie camera type

Single

Single
Selfie camera

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

(wide) , 20 MP, f/2.4 , 1/3.4" , 0.8 µm, 80˚ , 27 mm
Selfie camera resolution

6560 x 4928 pixels

5184 x 3880 pixels
Selfie camera features

Face unlock, HDR

Face unlock, HDR, panorama
Selfie camera video

1080p@30fps

1080p@30/60fps, 720p@120fps

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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C
USB On-The-Go

Yes

-
Bluetooth

v5.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

Yes (market dependent)

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

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

Battery
Battery type

Li-Po

Li-Po
Battery capacity

6000 mAh

5020 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes, 33W (45% in 30 min)

Quick Charge 4+ (100% in 37 min)
Reverse charging

Yes

-
Wireless charging

Yes, 15W

-
Talk time 4G

28 h

-
Standby time 4G

432 h

-