Realme 3i vs Xiaomi Mi Mix 2

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 850, 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1800, 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(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 27(800), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

LTE-A (2CA), Cat12, 600 Mbps download, 50 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

6.22 inches

5.99 inches
Resolution

720 x 1520 pixels

1080 x 2160 pixels
Pixel density

270 ppi

403 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3, LTPS(Low temperature PolySilicon)

Corning Gorilla Glass 4
Multitouch

Yes

Yes

Main camera
Camera type

Dual

-
Main camera

13 MP, f/1.8 , 1/3" , 1.12 µm

12 MP
2 MP
Primary camera resolution

4160 x 3120 pixels

-
Primary camera video

1080p@30fps

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera flash

dual-LED flash

dual-LED (dual tone) flash
Primary camera optical image stabilization

-

OIS (4-axis)
Primary camera phase detection autofocus

-

phase detection autofocus
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, phase detection

1.25 µm pixel size, 1/2.9" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
USB On-The-Go

Yes

-
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

Yes

-
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, compass, fingerprint, light, proximity

Fingerprint (rear-mounted), accelerometer, barometer, compass, gyro, proximity