Compact 120 Hz flagship
The Samsung Galaxy S21 5G is built for users who want a relatively compact phone with the feel of a full 2021 flagship. Its 6.2‑inch Infinity‑O Dynamic AMOLED 2X display runs at up to 120 Hz and offers FHD+ resolution (2400 x 1080 px), so scrolling, gaming and animations look smooth and sharp without draining the battery unnecessarily. HDR10+ support and high peak brightness mean streaming apps, photos and games show rich contrast and vivid colours, even in bright daylight.
Refined design with IP68 protection
The Galaxy S21 introduces Samsung’s “Contour Cut” camera housing, where the metal frame flows into the camera module for a cleaner, more integrated look on the back. A matte “Phantom” finish helps hide fingerprints, while Gorilla Glass Victus on the front and an aluminium frame provide everyday durability. With IP68 water‑ and dust‑resistance, the S21 can withstand rain, splashes and brief immersion in fresh water up to 1.5 metres for 30 minutes under laboratory conditions.
5G performance and all‑day battery
Inside, the Galaxy S21 5G uses either Samsung’s Exynos 2100 or Qualcomm’s Snapdragon 888 5G chipset (depending on region), paired with 8 GB of RAM. This 5 nm platform is still more than fast enough in 2026 for multitasking, demanding apps and modern games, while also delivering efficient power usage and full 5G support. Storage options are typically 128 GB or 256 GB of UFS 3.1; since the S21 no longer has a microSD slot, choosing the right capacity when you buy is important. A 4,000 mAh battery keeps the phone running through a full day of mixed use and supports 25 W fast wired charging, 15 W fast wireless charging and Wireless PowerShare, which lets you wirelessly charge accessories like earbuds or another Qi‑compatible phone on the back of the device.
Triple camera with 30x Space Zoom
On the rear, the Galaxy S21 5G features a versatile triple‑camera system: a 12 MP main wide camera with optical image stabilisation, a 12 MP ultra‑wide camera and a 64 MP telephoto camera with 3x hybrid optical zoom and up to 30x “Space Zoom.” This setup covers everything from everyday snapshots and wide landscapes to closer shots of distant subjects, while Samsung’s software offers improved Night mode, Single Take, Super Steady video and 8K recording for flexible photo and video creation. A 10 MP front camera in the punch‑hole display delivers sharp selfies and supports up to 4K video, making the S21 a strong option for video calls and social media content.
Why the Galaxy S21 5G is attractive as refurbished
As a refurbished smartphone, the Galaxy S21 5G offers a very current feature set at a much lower price than new S‑series flagships. You still get a 120 Hz OLED display, 5G performance, triple cameras, wireless charging with Wireless PowerShare and IP68 protection, but pay closer to mid‑range prices in 2026. Professionally refurbished units from Remobile are fully data‑wiped, cleaned and tested; display, cameras, speakers, ports, wireless connections and battery health are checked, and parts that do not meet our standards are replaced. This gives you a reliable, sustainable Galaxy flagship backed by a 2‑Year Remobile Warranty and a 60‑day return period.
Is the Samsung Galaxy S21 5G still good in 2026?
Yes. The Galaxy S21 5G still offers a smooth 120 Hz Dynamic AMOLED 2X display, fast Exynos 2100 or Snapdragon 888 performance and a versatile triple‑camera system. For everyday tasks such as social media, browsing, video streaming, photography and gaming, it remains more than capable when purchased refurbished at a lower price.
What display does the Galaxy S21 5G have?
The Galaxy S21 5G features a 6.2‑inch Infinity‑O Dynamic AMOLED 2X screen with FHD+ resolution of 2400 x 1080 pixels and an adaptive 120 Hz refresh rate. It also supports HDR10+ and high peak brightness, so content looks sharp and vivid indoors and outdoors.
Which processor and memory does the S21 5G use?
Depending on the region, the Galaxy S21 5G is powered by either the Samsung Exynos 2100 or Qualcomm Snapdragon 888 5G chipset, combined with 8 GB of RAM. This hardware is still strong enough in 2026 for demanding apps and modern games while staying efficient on battery.
How much storage does the Galaxy S21 5G offer?
Most refurbished Galaxy S21 5G units come with 128 GB or 256 GB of fast UFS 3.1 internal storage. There is no microSD card slot on this model, so you should select the storage capacity that fits your photos, videos and apps when you buy.
What is the battery life like on a refurbished S21 5G?
The Galaxy S21 5G has a 4,000 mAh battery designed to last a full day of mixed use. During refurbishment, the battery is tested and, if it does not meet our standards, it is replaced so you can still expect reliable all‑day performance with 25 W fast wired charging, 15 W fast wireless charging and Wireless PowerShare.
Which cameras are on the Galaxy S21 5G?
On the back, the S21 5G offers a triple‑camera setup: a 12 MP wide main camera with OIS, a 12 MP ultra‑wide camera and a 64 MP telephoto camera with 3x hybrid optical zoom and up to 30x Space Zoom. On the front, a 10 MP selfie camera in the punch‑hole supports sharp selfies and up to 4K video for calls and social media.
Does the Galaxy S21 5G support wireless charging?
Yes. The Galaxy S21 5G supports fast wireless charging and Wireless PowerShare. You can charge the phone on a compatible wireless charger and also use the S21 itself to wirelessly top up accessories such as earbuds or another Qi‑compatible smartphone.
Is the Samsung Galaxy S21 5G water-resistant?
The Galaxy S21 5G is rated IP68 for water and dust resistance. Under laboratory conditions it can withstand immersion in fresh water up to 1.5 metres for up to 30 minutes, but it is not designed for swimming or salt‑water use, so extended or deep immersion should be avoided.
Does the Galaxy S21 5G have a headphone jack or microSD slot?
No. The Galaxy S21 5G does not include a 3.5 mm headphone jack or a microSD slot. You connect audio via USB‑C or Bluetooth and rely on the built‑in 128 GB or 256 GB of storage.
What is checked on a refurbished Galaxy S21 5G?
Every refurbished Galaxy S21 5G from Remobile undergoes a multi‑point inspection. Display, touch, cameras, speakers, microphones, ports, wireless connections, sensors and battery health are tested. The software is reset, the device is cleaned and cosmetically graded, and components that do not meet our standards are repaired or replaced before sale.
Why choose a refurbished Galaxy S21 5G from Remobile?
Buying a refurbished Galaxy S21 5G from Remobile gives you a modern 5G flagship at a significantly lower price, with the reassurance of professional testing, minimum battery‑health criteria, a 2‑Year Remobile Warranty and a 60‑day return period. At the same time, you help reduce electronic waste by extending the life of a high‑quality device.