Realme 9i vs Xiaomi 12S

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 2100

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

LTE frequency band 1, 3, 5, 8, 38, 40, 41

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

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 2.4 Mbps download, 0.15 Mbps upload
LTE speed

LTE-A

LTE-A
GPRS

Yes

Class 33
EDGE

Yes

Class 33

Design
Build

Glass front, plastic frame, plastic back

Glass front (Gorilla Glass Victus), glass back or eco leather back, aluminum frame
SIM

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

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

164.4 mm

152.7 mm
Width

75.7 mm

69.9 mm
Thickness

8.4 mm

8.2/8.7 mm
Weight

190 g

179/182 g
Colors

Black, Blue

Gray, Green, Purple, White

Display
Display type

IPS LCD

AMOLED
Physical size

6.6 inches

6.28 inches
Resolution

1080 x 2412 pixels

1080 x 2400 pixels
Pixel density

400 ppi

419 ppi
Display colors

16777216

1073741824
Protection

Scratch resistant

Scratch resistant, Corning Gorilla Glass Victus
Display features

90Hz, 480 nits (typ)

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

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.4 GHz Kryo 265 Gold

Single-core 3.19 GHz Cortex-X2
CPU(second)

quad-core 1.9 GHz Kryo 265 Silver

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM6225 Snapdragon 680 4G

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 610

Adreno 730
Memory RAM

4, 6 GB

8, 12 GB
Internal storage

64, 128 GB

128, 256, 512 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

1 TB

-
Storage

UFS 2.2

UFS 3.1

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 26 mm, 1/2.76" , 0.64 µm

(wide) , 50 MP, f/1.9 , 24 mm, 1/1.28" , 1.22 µm
(macro) , 2 MP, f/2.4

(ultrawide) , 13 MP, f/2.4 , 123˚ , 15 mm, 1/3.06" , 1.22 µm
(depth) , 2 MP, f/2.4

(telephoto macro) , 5 MP, f/2.4 , 50 mm
Primary camera resolution

-

8190 x 6144 pixels
Primary camera video

1080p@30fps

8K@24fps, 4K@30/60fps, 1080p@30/60fps, 720p@1920fps, gyro-EIS
Primary camera optics

-

Leica lens
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

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

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, macro-mode, phase detection autofocus, super night mode 2.0, cyberfocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.1 , 1/3.0" , 1.0 µm

(wide) , 32 MP, f/2.5 , 0.7 µm, 80˚ , 26 mm
Selfie camera features

-

Face unlock, HDR
Selfie camera video

1080p@30fps

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

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 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes