Sources and limitations

Listed specifications are reference information, not results of TechMyte testing. Rumored details may change, and hardware or supported features can differ by region. Confirm the exact model with its manufacturer before buying.

Battery capacity does not establish tested endurance; megapixel count does not establish camera quality. Use the comparison tool to identify differences, then check the features that matter to your use.

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Technical data sheet

Full Specifications

Network

Technology	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100
4G bands	1, 3, 5, 8, 38, 40, 41
Speed	HSPA, LTE

Launch

Announced	2021, September 09
Status	Available. Released 2021, September 14

Body

Dimensions	164.1 x 75.5 x 8.5 mm (6.46 x 2.97 x 0.33 in)
Weight	194 g (6.84 oz)
SIM	Nano-SIM + Nano-SIM
Build	Glass front, plastic frame, plastic back

Battery

Type	5000 mAh
Charging	18W wired

Display

Size	6.6 inches, 104.8 cm2 (~84.6% screen-to-body ratio)
Resolution	1080 x 2412 pixels, 20:9 ratio (~400 ppi density)
Type	IPS LCD, 120Hz, 600 nits (peak)

Platform

OS	Android 11, Realme UI 2.0
Chipset	Mediatek MT6781 Helio G96 (12 nm)
CPU	Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU	Mali-G57 MC2

Memory

Card slot	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM

Selfie camera

Single	16 MP, f/2.1, (wide), 1/3.0", 1.0µm
Video	1080p@30fps
Features	Panorama

Sound

Loudspeaker	Yes
3.5mm jack	Yes

Comms

WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth	5.1, A2DP, LE
Positioning	GPS, GLONASS, GALILEO, BDS
NFC	Yes (market/region dependent)
Radio	No
USB	USB Type-C 2.0, OTG

Features

Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Misc

Colors	Space Black, Space Purple
Price	About 440 EUR
Models	RMX3151

Main Camera

Features	LED flash, HDR, panorama
Triple	50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF 2 MP (macro) Auxiliary lens
Video	1080p@30fps

Our Tests

Display	1244:1 contrast ratio, 540 nits max brightness (measured)
Loudspeaker	-28.4 LUFS (Average)
Camera	Photo / Video
Battery (old)	Endurance rating 131h

Realme 8i