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Realme C51

Realme C51 deals

The Realme C51 is in our catalog but no UK retailer currently stocks it.

First-time phone owners, backup handset buyers and anyone who wants maximum battery life and fast charging at the lowest cost, and who does not need 5G or a sharp screen.

Realme C51

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The Realme C51 is in our catalog but no UK retailer currently stocks it. Check back later, or browse Realme alternatives below.

About the Realme C51

The realme C51 is an entry-level phone that spends its money in two obvious places: a big battery and fast charging. The 5,000mAh cell easily lasts more than a day with light use, and 33W SUPERVOOC charging is genuinely quick for this end of the market, where 10W bricks are still normal. Everything else is honestly basic. The 6.74-inch screen is large and runs at 90Hz, which helps scrolling feel less sluggish, but it is a 720p LCD, so text and images look noticeably coarser than on a full HD panel. The Unisoc Tiger T612 copes with messaging, browsing and video, though it slows down when you push it with multiple apps or anything demanding. Photography is limited to a 50MP main camera that does reasonable daylight work and struggles indoors, backed by a depth sensor rather than a useful second lens. There is no 5G, so this is a 4G-only phone. Taken for what it is, it is a sturdy first phone, a spare handset or a low-cost option for someone who mainly wants calls, messaging and long battery life.

realme C51 vs realme C55 - Key Differences

Feature Realme C51 realme C55
Display 6.74-inch IPS LCD, 720 x 1600, 90Hz 6.72-inch IPS LCD, 1080 x 2400, 90Hz
Chipset Unisoc Tiger T612 MediaTek Helio G88
Rear cameras 50MP main plus 0.3MP depth 64MP main plus 2MP depth
Front camera 5MP 8MP
Memory options 3GB, 4GB or 6GB RAM; 64GB, 128GB or 256GB storage 6GB or 8GB RAM; 128GB or 256GB storage
Weight 186 g 189.5 g
SIM-free price Not available From £140.00

Frequently asked questions

Is the realme C51 worth buying?
It is worth considering if your priorities are battery life, fast charging and a large screen at the lowest possible outlay. The 720p display, entry-level Unisoc chip and 4G-only connectivity mean it is not a phone to buy for performance or photography. For a first phone, a backup or basic daily use, it does the job.
Does the realme C51 have 5G?
No. The realme C51 is a 4G phone only, so it will not connect to UK 5G networks. If 5G matters to you, look at a slightly more expensive model instead.
How long does the realme C51 battery last?
The 5,000mAh battery paired with a low-power chip and a 720p screen comfortably covers a full day and often stretches into a second with light use. It also supports 33W SUPERVOOC charging, which realme rates at 50 percent in around 28 minutes, so a short top-up goes a long way.
Is the realme C51 camera good?
The 50MP main camera takes acceptable photos in good daylight but loses detail quickly indoors and at night. The second rear camera is only a 0.3MP depth sensor, so there is no ultrawide or zoom lens, and the 5MP front camera is basic. Treat it as adequate for casual snaps rather than a reason to buy.
Does the realme C51 have expandable storage?
Yes. It has a dedicated microSD slot alongside two SIM slots, so you can add a card without giving up a SIM, and realme supports cards up to 2TB. It also keeps the 3.5mm headphone jack and has a side-mounted fingerprint reader.
Should I get the realme C51 or the realme C55?
The realme C55 is the better phone on paper, with a sharper 1080p display, a faster MediaTek Helio G88 chip, a 64MP main camera and a higher-resolution 8MP selfie camera. Both are 4G-only with 5,000mAh batteries and 33W charging. Pick the C51 if you want the lowest-cost option, or the C55 if screen sharpness and general speed matter.

Realme C51 Specifications

General

Dimensions

167.2 x 76.7 x 8

Weight

186 g

SIM

Nano-SIM + Nano-SIM

Operating System

Android 13, Realme UI T

Colours

Mint Green, Carbon Black

Radio

Unspecified

Body

Mint Green, Carbon Black

Camera

Primary Camera Megapixels

50

Primary Camera

50 , f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens

Primary Camera Video

1080@30fs

Selfie Camera Features

HDR

Primary Selfie Camera

5 , f/2.2, 28mm (wide), 1/5.0", 1.12µm

Video Resolution

1080

Selfie Video Resolution

720@30fs

Display

Type

IPS LCD, 90Hz, 560 nits (peak)

Display Size

6.74

Display Resolution

720 x 1600 pixels, 20:9 ratio (~260 ppi density)

CPU & Memory

Chipset

Unisoc Tiger T612

GPU

Mali-G57

CPU

Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)

Memory Card Slot

microSDXC (dedicated slot)

Internal Storage

64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM, 256GB 6GB RAM

Sound

Loudspeaker

Yes

3.5mm Jack

Yes

Connectivity & Data

2G

GSM 850 / 900 / 1800 / 1900

3G

HSDPA 850 / 900 / 2100

4G

1, 3, 5, 8, 38, 40, 41 - Africa, India

Network Speed

HSPA, LTE

Network Technology

GSM / HSPA / LTE

Wi-Fi

Wi-Fi 802.11 a/b/g/n/ac, dual-band

Bluetooth

5.0, A2DP, LE

USB

USB Type-C 2.0, OTG

NFC

Yes, 360˚ (market/region dependent)

GPS

GPS, GLONASS, GALILEO

Battery

Battery

5000

Charging

33W wired, 0-50% in 28 min

Other

Sensors

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