Realme 3 Pro vs Xiaomi 12X

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

LTE Cat12, 603 Mbps download, 102 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS capacitive touchscreen

OLED
Physical size

6.3 inches

6.28 inches
Resolution

1080 x 2340 pixels

1080 x 2400 pixels
Pixel density

409 ppi

419 ppi
Display colors

16777216

1073741824
Protection

2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 5, LTPS (Low Temperature PolySilicon)

Scratch resistant, Corning Gorilla Glass Victus
Multitouch

Yes

-
Display features

-

120Hz, Dolby Vision, HDR10+, 1100 nits (peak)

Main camera
Camera type

Dual

Triple
Main camera

16 MP, f/1.7 , 1/2.6" , 1.22 µm

50 MP, f/1.9 , 1/1.56" , 1.0 µm, (wide) , 26 mm
5 MP, f/2.4

13 MP, f/2.4 , (ultrawide) , 123˚ , 12 mm, 1/3.06" , 1.12 µm
(telephoto macro) , 5 MP, 50 mm
Primary camera resolution

4608 x 3456 pixels

8190 x 6144 pixels
Primary camera video

2160p@30fps, 1080p@30/120fps, 720p@960fps

8K@24fps, 4K@30/60fps, 1080p@30/120/240/960fps, gyro-EIS
Primary camera flash

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

Autofocus, continuous autofocus, continuous shooting, 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, super night mode 2.0, HDR10 video recording

Selfie camera
Selfie camera type

-

Single
Selfie camera

25 MP, f/2 , 1/2.8" , 1.8 µm

32 MP, 0.7 µm, (wide) , 80˚ , 26 mm
Selfie camera resolution

5760 x 4312 pixels

-
Selfie camera features

-

Face unlock, HDR
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

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

Yes

-
Infrared

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes