Refurbished. Reliable.
Better for you & the planet.
Free shippingFree shipping14-day returns14-day returnTested devicesTested & inspected devices
Quality you can trust
12 in stock
Samsung Galaxy S21 Ultra
4.6(28 500)
12 in stockSamsung Galaxy S21 Ultra • The absolute pinnacle of smartphones at a great saving. Tested used phones, with fast delivery and up to 12-month warranty.
Battery
Accessories
from
222 €– 337 €-82%
New cost was 1249 €
Grade
Showing 1–12 of 12 results
Showing 1–12 of 12 results
Sort by:
products
- B
Grade BSamsung Galaxy S21 Ultra 5G 512GB G998B
326.00€(0%)(0%)Grade B (Good)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - C+
Grade C+Samsung Galaxy S21 Ultra 5G 128GB G998B
228.00€(0%)(0%)Grade C+ (Above Average)Standard battery (80%+)Without charger6-month warrantyIn Stock: 2 pcs- Standard battery (80%+)
- Without charger
- 6-month warranty
In Stock: 2 pcsDelivery: 2-4 days - CGrade C
Samsung Galaxy S21 Ultra 5G 128GB G998B
227.40€(21%)(21%)Grade C (Average)Standard battery (80%+)Without charger6-month warrantyIn Stock: 3 pcs- Standard battery (80%+)
- Without charger
- 6-month warranty
In Stock: 3 pcsDelivery: 2-4 days - B
Grade BSamsung Galaxy S21 Ultra 5G 128GB G998B
272.30€(21%)(21%)Grade B (Good)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - C+
Grade C+Samsung Galaxy S21 Ultra 5G 256GB G998B
240.00€(0%)(0%)Grade C+ (Above Average)Standard battery (80%+)Without charger6-month warrantyIn Stock: 3 pcs- Standard battery (80%+)
- Without charger
- 6-month warranty
In Stock: 3 pcsDelivery: 2-4 days - CGrade C
Samsung Galaxy S21 Ultra 5G 256GB G998B
222.00€(0%)(0%)Grade C (Average)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - C+
Grade C+Samsung Galaxy S21 Ultra 5G 512GB G998B
305.00€(0%)(0%)Grade C+ (Above Average)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - B
Grade BSamsung Galaxy S21 Ultra 5G 512GB G998B
337.00€(0%)(0%)Grade B (Good)Standard battery (80%+)Without charger6-month warrantyIn Stock: 2 pcs- Standard battery (80%+)
- Without charger
- 6-month warranty
In Stock: 2 pcsDelivery: 2-4 days - C+Grade C+
Samsung Galaxy S21 Ultra 5G 128GB G998B
245.90€(21%)(21%)Grade C+ (Above Average)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - BGrade B
Samsung Galaxy S21 Ultra 5G 512GB G998B
337.00€(0%)(0%)Grade B (Good)Standard battery (80%+)Without charger6-month warrantyIn Stock: 2 pcs- Standard battery (80%+)
- Without charger
- 6-month warranty
In Stock: 2 pcsDelivery: 2-4 days - CGrade C
Samsung Galaxy S21 Ultra 5G 512GB G998B
264.00€(0%)(0%)Grade C (Average)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days - C
Grade CSamsung Galaxy S21 Ultra 5G 256GB G998B
222.00€(0%)(0%)Grade C (Average)Standard battery (80%+)Without charger6-month warranty1 pcs – last one!- Standard battery (80%+)
- Without charger
- 6-month warranty
1 pcs – last one!Delivery: 2-4 days
Refurbished Samsung Galaxy S21 Ultra – Overview
Refurbished Samsung Galaxy S21 Ultra is available at Greenfox with prices starting from €216. 6.8", Exynos 2100 (5 nm), RAM: 8GB, (2021). All devices are inspected and covered by up to 12-month warranty.
Pros
- +Phenomenal display: Exceptionally bright and sharp 120Hz LTPO panel.
- +10x optical zoom: Still one of the best telephoto capabilities on the market.
- +S-Pen support: Allows for precise drawing and note-taking.
- +Premium build quality: Matte glass and a sturdy aluminum frame feel luxurious in hand.
- +Powerful RAM: Up to 16GB of RAM ensures smooth multitasking even in 2026.
- +Top-tier 5G: Supports all modern high-speed mobile networks.
Cons
- −No SD card slot: Storage cannot be expanded later.
- −Large and heavy: 227 grams is noticeable and one-handed use is difficult.
- −Slow charging: 25W charging falls short of modern standards (takes over 1 hour).
- −Software support ending: No new Android versions beyond 15 will be released.
- −Exynos processor: Can overheat under prolonged load and throttle performance.
Frequently Asked Questions - Samsung Galaxy S21 Ultra
Does the S21 Ultra support the S-Pen stylus?
Yes, the S21 Ultra is the first S series phone to support the S-Pen. Unlike the Note series, the phone does not have a slot for the pen, so you need to purchase the pen separately with a compatible case.
Does the phone have a memory card slot?
No, the S21 series was the first where Samsung removed the microSD card slot. It is recommended to choose a model with a larger storage capacity (256GB or 512GB) from the start.
How long will the battery last in 2026?
With a new battery, the device will last a full day with moderate use. As this is an older model, battery life depends on the specific device's wear and tear. 120Hz and QHD+ resolution consume battery faster.
Is the camera still competitive?
Yes, the 108MP main sensor and 10x optical periscope zoom are still better than most new mid-range phones. It's a great choice for an amateur photographer.
What is the latest Android version for this model?
The Samsung Galaxy S21 Ultra's last major update is Android 15 with One UI 7. After that, the device will receive security patches for a limited time.
Does the screen support 120Hz and QHD+ resolution simultaneously?
Yes, the S21 Ultra was the first Samsung phone to allow using the maximum resolution and 120Hz refresh rate simultaneously.