Galaxy S21 Ultra 5GBlack • 512 GB • Physical SIM + eSIM

(5 reviews)

A$717.00

Save A$1,444.00

GST inclusive*

Free delivery by 23 - 24 June

Express shipping by 22 - 23 June from A$8.00

Often bought together

Galaxy S21 Ultra 5G

Black • 512 GB • Physical SIM + eSIM

Refurbished price:A$717.00

Versus A$2,161.00 new

AirPods Pro 2 (2023)

Refurbished price:A$249.00

Total price: A$966.00

These items might be sold and shipped by different sellers.

Customer reviews for Galaxy S21 Ultra 5G

Overall rating

5 verified reviews

Rating details

Battery
3.8/5
Shipping
4/5
Lens & Camera
3.8/5
Accessories
3.5/5
Packaging
4/5
Overall performance
4/5
Appearance
4/5

Reviews

Eric W.
Verified purchase
Reviewed 16/4/25, Australia.
Very nice phoner, feels like a new one. Many thanks for providing this service.
Galaxy S21 Ultra 5G 256GB - Dark Blue - Unlocked
Galaxy S21 Ultra 5G 256GB - Dark Blue - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
2/4/25
Russell C.
Verified purchase
Reviewed 5/6/25, Australia.
Great from start to finish. Phone received works perfectly and in great condition
Galaxy S21 Ultra 5G 256GB - Silver - Unlocked
Galaxy S21 Ultra 5G 256GB - Silver - Unlocked
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
15/5/25
Eduardo A.
Verified purchase
Reviewed 3/4/24, Australia.
Great! Item is as described 👌
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
10/3/24
David hugh A.
Verified purchase
Reviewed 26/9/23, Australia.
My phone I ordered arrived on time and is just what I ordered thank you very much 😊
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
22/9/23
Leo. P.
Verified purchase
Reviewed 29/7/24, Australia.
Received Samsung Galaxy S21 ULTRA 512gb intact. BUT !!!!!!!!!!!! 1x camera is not focusing properly. takes blurry pics, very annoying. Seller probably knew about the defect because it's FIRST THING YOU NOTICE when you open the camera. now I lost a night importing stuff and I have to go through return/repair process.... disappointed. 900$ lost and an other week waiting for a new phone...
Galaxy S21 Ultra 5G 512GB - Black - Unlocked
Galaxy S21 Ultra 5G 512GB - Black - Unlocked
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
23/7/24

Everything you ever wanted to know about the Galaxy S21 Ultra 5G

Durability
Overall performance
Camera
Screen quality

Dynamic AMOLED 2XScreen type
UnlockedCarrier compatibility
Samsung Galaxy SSerie
2021Release year
AndroidOperating system
SamsungBrand
227 ozWeight
108 megapixelsMain camera
1440 x 3200Resolution

The Galaxy S21 Ultra 5G is a flagship-level smartphone introduced in early 2021, known for its high-end features and large storage capacity. This model is unlocked and suitable for users who need a powerful device capable of handling demanding tasks and multimedia consumption.

Key features:

Display: 6.8-inch Dynamic AMOLED 2X, 1440 x 3200 pixels, with a 120Hz refresh rate
Processor: Exynos 2100 (Global) or Snapdragon 888 (USA)
Camera: Quad-camera system with 108MP main sensor, 10MP periscope telephoto, 10MP telephoto, and 12MP ultra-wide
Storage: 512GB internal storage
Connectivity: 5G capable for fast network access

Who is this for?

The Galaxy S21 Ultra 5G is suited for tech enthusiasts, content creators, and professionals who require a high-performance device with a large display and extensive camera capabilities. It’s ideal for users who want a premium Android experience with ample storage for media and apps.

Pros & Cons:

Pros	Cons
Large, vibrant display suitable for media consumption.	Heavy and bulky for users preferring smaller phones.
Excellent camera system with high-resolution sensors.	Expensive new if purchased brand new.
5G connectivity for fast network access.	Battery life may vary with heavy use.

Why refurbished?

Opting for a refurbished Galaxy S21 Ultra 5G provides access to a premium device at a more accessible price point. Each device undergoes thorough testing and quality checks to ensure reliable performance. Back Market’s refurbishment process adheres to strict standards, guaranteeing a high-quality pre-owned device. Learn more about our quality standards.

Screen type: Dynamic AMOLED 2X
Carrier compatibility: Unlocked
Serie: Samsung Galaxy S
Release year: 2021
Operating system: Android
Brand: Samsung
Weight: 227 oz
Main camera: 108 megapixels
Resolution: 1440 x 3200
Compatible with latest Update: Yes
Network: 5G
Storage: 512 GB
Foldable: No
Memory (GB): 12 GB
Card slot: No
Screen size (in): 6.8
Color (official name): Phantom Black
Colour: Black
SIM card: Physical SIM + eSIM
Model: Galaxy S21 Ultra 5G
Front camera: 40 megapixels
Manufacturer version: SM-G998B

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Galaxy S21 Ultra 5GBlack • 512 GB • Physical SIM + eSIM

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

Rating details

Reviews

Reviews

Eric W.

Russell C.

Eduardo A.

David hugh A.

Leo. P.

Everything you ever wanted to know about the Galaxy S21 Ultra 5G

Durability

Overall performance

Camera

Screen quality

Welcome to Back Market