Realme C21Black • 64 GB • Dual Physical SIM

Name: Realme C21 64GB - Black - Unlocked
Brand: Realme
Price: 197.00 GBP
Availability: InStock

(24 reviews)

£197.00

before trade-in

Free delivery by 27 - 29 Jun

Express delivery by 25-26 Jun from £5.00

Restored professionally

Based on up to 100-points of inspection

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All guaranteed 100% functional

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Fair Sold out
Good Sold out
Excellent £197.00
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64 GB £197.00

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Black £197.00

Realme C21

Excellent
64 GB
Black

£197.00

before trade-in

applies (starting at £0.99)

Proudly refurbished by Ontronics Ltd

Free delivery by 27 - 29 Jun

Express delivery by 25-26 Jun from £5.00

Comes with

Compatible charging cable

Often bought together

Realme C21

Black • 64 GB • Dual Physical SIM

Refurbished price:£197.00

Versus £190.00 new

AirPods Pro 2 (2024)

Refurbished price:£149.00

Total price: £346.00

These items might be sold and delivered by different sellers.

Customer reviews for Realme C21

Overall rating

24 verified reviews

Rating details

Accessories
4.2/5
Appearance
4.2/5
Battery
4.3/5
Lens & Camera
3.8/5
Overall performance
4/5
Packaging
4.3/5
Shipping
4/5

Reviews

David W.
Verified purchase
Reviewed 13/10/2022, United Kingdom.
.
Realme C21 32GB - Blue - Unlocked - Dual-SIM
Realme C21 32GB - Blue - Unlocked - Dual-SIM
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
11/10/2022
Betty S.
Verified purchase
Reviewed 24/11/2024, France.
Very good 👍
Translated from French
Realme C21 64 Go - Noir - Débloqué
Realme C21 64 Go - Noir - Débloqué
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
09/11/2024
Ελενη Ρ.
Verified purchase
Reviewed 30/04/2026, Greece.
Realme C21 64GB - Μαύρο - Ξεκλείδωτο
Realme C21 64GB - Μαύρο - Ξεκλείδωτο
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
16/04/2026
Betty S.
Verified purchase
Reviewed 23/07/2023, France.
It is perfect always satisfied with your si
Translated from French
Realme C21 64 Go - Bleu - Débloqué
Realme C21 64 Go - Bleu - Débloqué
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
06/07/2023
Cécile H.
Verified purchase
Reviewed 04/12/2021, France.
Phone bought for a teenager, perfect for her. The best thing for me is that it is compatible with google. The quality is there as always, delivery is fast. I highly recommend it.
Translated from French
Realme C21 32 Go - Noir - Débloqué
Realme C21 32 Go - Noir - Débloqué
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
17/11/2021
Pablo C.
Verified purchase
Reviewed 01/09/2022, Spain.
Very fast delivery, perfect condition of the phone, a 10 to the seller. It is the second time I order in backmarket and everything perfect, no doubt I will repeat.
Translated from Spanish
Realme C21 64GB - Negro - Libre - Dual-SIM
Realme C21 64GB - Negro - Libre - Dual-SIM
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
18/08/2022
Raquel R.
Verified purchase
Reviewed 06/01/2022, Spain.
The product is perfect, the delivery was very fast and there was a communication failure, I was not notified in time when the order was going to arrive and I had to go to the delivery office to pick it up, but really, no problem.
Translated from Spanish
Realme C21 64GB - Azul - Libre - Dual-SIM
Realme C21 64GB - Azul - Libre - Dual-SIM
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
31/12/2021

Everything you ever wanted to know about the Realme C21

Durability
Overall performance
Camera
Screen quality

4 GBMemory (GB)
64 GBStorage
Dual Physical SIMSIM card
Cross BlackColour (official name)
5 megapixelsFront camera
RMX3201Manufacturer Ref
AndroidOS
RealmeBrand
720 x 1600Resolution

The Realme C21 is a practical smartphone designed for users seeking reliable performance without unnecessary frills. Launched in March 2021, this device features a solid build and essential functionalities, making it suitable for everyday tasks.

Key features:

Release Date: March 2021
Display: 6.5-inch IPS LCD, HD+ resolution
Processor: MediaTek Helio G35
Camera: Triple rear cameras with a 13MP main sensor
Connectivity: 4G LTE support for reliable mobile data.

Who is this for?

The Realme C21 is ideal for students, first-time smartphone users, or anyone needing a straightforward device for calls, messaging, and light app usage. It’s a practical choice for those who don’t require high-end specifications but still want a dependable smartphone experience.

Pros & Cons:

Pros	Cons
Large display for media consumption.	Limited performance for heavy multitasking or gaming.
Decent camera for everyday photography.	Basic design may not appeal to all users.

Why refurbished?

Choosing a refurbished Realme C21 allows you to enjoy a functional smartphone while being eco-conscious. Back Market ensures each device undergoes thorough testing to meet quality standards, providing peace of mind for your purchase. Learn more about our quality standards.

Memory (GB): 4 GB
Storage: 64 GB
SIM card: Dual Physical SIM
Colour (official name): Cross Black
Front camera: 5 megapixels
Manufacturer Ref: RMX3201
OS: Android
Brand: Realme
Resolution: 720 x 1600
Main camera: 13 megapixels
Carrier compatibility: Unlocked
SD Card Slot: microSDXC
Foldable: No
Mobile network: 4G
Weight: 190 g
Screen type: IPS LCD
Compatible with latest Update: No
Year of Release: 2021
Screen size (in): 6,5
SAR head: N/A
Colour: Black
Model: Realme C21

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Realme C21Black • 64 GB • Dual Physical SIM

Realme C21Black • 64 GB • Dual Physical SIM

Restored professionally

Comes with

Often bought together

Customer reviews for Realme C21

Overall rating

Rating details

Reviews

Reviews

David W.

Betty S.

Ελενη Ρ.

Betty S.

Cécile H.

Pablo C.

Raquel R.

Popular searches

Everything you ever wanted to know about the Realme C21

Durability

Overall performance

Camera

Screen quality

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