Customer support: Monday to Friday 9 - 18 Monday to Friday 9 - 18 +372 502 2230 [email protected]
12-month Warranty.
12-month Warranty.
Free & fast delivery.
Free & fast delivery.
Secure payment
Secure payment
Satisfied customers
Satisfied customers
Easy returns
Easy returns

Samsung Galaxy S21 Ultra 5G

Price range: 289 € through 439 €

Our refurbished Samsung Galaxy S21 Ultra 5G devices have been thoroughly inspected and tested. Order today and receive the goods in an average of 1-3 days! All purchases have a 14-day right of return period and 12 months warranty.

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Out of stock
Estimated delivery: 09.03.2026 - 11.03.2026
12-months warranty: Read more about the warranty conditions from
here.
14-day return policy: If the product does not match its description, we will gladly accept a return.
Price range: 289 € through 439 €
Description
Specification
Samsung Galaxy S21 Ultra 5G - Redefining Smartphone Excellence

Introducing the Samsung Galaxy S21 Ultra 5G, a smartphone designed to meet your every need. This powerhouse device offers top-tier performance, stunning visuals, and advanced features, all in a sleek, stylish package.

  • Unmatched Performance: Powered by the Exynos 2100 processor, the Samsung Galaxy S21 Ultra 5G delivers lightning-fast speeds and smooth multitasking. With 12GB of RAM and up to 512GB of storage, you have ample space and power for all your apps, media, and files.
  • Stunning Display: Enjoy breathtaking visuals on the 6.8-inch Dynamic AMOLED 2X display. With a resolution of 3200 x 1440 pixels, a 120Hz refresh rate, and HDR10+ support, your viewing experience will be vibrant and fluid, perfect for gaming, streaming, or browsing.
  • Professional-Grade Camera: The quad-camera system lets you capture every moment in incredible detail. It includes a 108MP wide sensor, a 12MP ultra-wide sensor, and two 10MP telephoto lenses with 3x and 10x optical zoom. The 40MP front camera ensures your selfies are always sharp and clear.
  • Long-Lasting Battery: The 5000mAh battery keeps you connected all day long, even with heavy use. With support for 25W fast charging, 15W wireless charging, and reverse wireless charging, you'll never be without power.
  • Sleek Design: Weighing just 228 grams, the Galaxy S21 Ultra 5G combines style and comfort. Available in Phantom Black and Phantom Silver, its premium metal and glass construction offers durability and sophistication.
  • Advanced Connectivity: Stay ahead with 5G capabilities, ensuring fast download and upload speeds. Additionally, Wi-Fi 6E support enhances performance and reduces latency for all your online activities.
  • Enhanced Security: Protect your data with Samsung's Knox security platform, offering robust, multi-layered protection. The ultrasonic fingerprint sensor and facial recognition provide quick and secure access to your device.
Network
Technology: GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
3G bands: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
5G bands: 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
Speed: HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
Body
Dimensions: 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Weight: 227 g (Sub6), 229 g (mmWave) (8.01 oz)
Build: Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
SIM: Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
Display
Type: Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
Size: 6.8 inches, 112.1 cm (~89.8% screen-to-body ratio)
Resolution: 1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Protection: Corning Gorilla Glass Victus
Platform
OS: Android 11, upgradable to Android 14, One UI 6
Chipset: Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPU: Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPU: Mali-G78 MP14 - InternationalAdreno 660 - USA/China
Memory
Card slot: No
Internal: 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
Main Camera
Quad: 108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Features: LED flash, auto-HDR, panorama
Video: 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
Single: 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Features: Dual video call, Auto-HDR
Video: 4K@30/60fps, 1080p@30fps
Sound
Loudspeaker: Yes, with stereo speakers
3.5mm jack: No
Comms
WLAN: Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth: 5.2, A2DP, LE
Positioning: GPS, GLONASS, BDS, GALILEO
NFC: Yes
Radio: FM radio (Snapdragon model only; market/operator dependent)
USB: USB Type-C 3.2, OTG
Features
Sensors: Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Battery
Type: Li-Ion 5000 mAh, non-removable
Charging: 25W wired, PD3.0 15W wireless (Qi/PMA) 4.5W reverse wireless
Kaitseaste IP68
Refurbished

Related smartphones

Wide selection of quality refurbished smartphones in A and B condition. All phones are thoroughly tested and covered by warranty. Choose from iPhone, Samsung Galaxy, Google Pixel, Xiaomi and other popular brands at a lower price.

Frequently asked questions

Does each device come with a charger?
Each device comes with a charging cable in the box. Smartphones and tablets also include a SIM-pin.
Battery capacity at least 80% — new battery if needed
All devices we sell have at least 80% battery capacity compared to a new device or battery. If the battery capacity is lower than 80%, we replace it with a new one. Therefore, all our batteries are in excellent condition.
Are all devices tested?

Yes. All our grade A, B and C devices undergo a thorough technical inspection at a certified testing and repair center in Estonia before being offered for sale.

The inspection includes, among other things:

  • Visual inspection of the device (display, casing, buttons, etc.),
  • Testing of key functions (touchscreen, cameras, microphone, speakers, charging, Wi-Fi, Bluetooth, etc.),
  • Checking the battery condition and charging functionality,
  • Updating the software and restoring factory settings where necessary,
  • Secure erasure of the previous user’s data in accordance with licensing and data protection requirements.

The testing and repair center follows international standards:

  • ISO 9001
  • ISO 14001
  • ISO 27001
  • ISO 45001

Only devices that pass all tests and meet our quality and safety requirements are offered for sale. The remaining devices are sent for servicing or removed from the product range.

Is there a warranty for the devices?
Yes, all our devices come with a 12-months warranty, noted in each product's description. If you encounter any issues, you can return the product within the warranty period. For full warranty terms, click here: [ Technocircle OÜ – Warranty Terms]
ESTO Hire Purchase – buy now, pay later!
ESTO Hire Purchase – buy now, pay later!

With ESTO hire purchase, you can pay for your purchase in installments. Simply select “ESTO Hire Purchase” as your payment method and apply quickly and easily during checkout. The decision is made in real time, and the entire process is fully digital.

  • Flexible payment schedule
  • Digital contract and signature
  • Approval in just seconds
Can I try the device in-store before buying?
Currently, we operate only online, so in-store testing isn’t available. However, we are committed to providing quality devices and are happy to offer more information to help you make an informed decision.

Contact us:
Email: [email protected]
Phone: +372 5022230

Contact us
More than 5,000 units in A & B condition available
More than 5,000 units in A & B condition available
A diverse range of products for both private and business customers.
Easy returns.
Easy returns.
Customer service that ensures easy returns.
Satisfied customers.
Satisfied customers.
Our best reward is your satisfaction.