Samsung Galaxy S21
2021Support ended
Price from
Color
Storage
Condition
Pros and Cons
Strengths and weaknesses at a glance.
Why choose
- Excellent display
- Durable battery
- Premium design
- Capable camera system
- 5G ready
- Smooth One UI
What to consider
- No memory card slot
- Slow charging
- End of software support
- Exynos processor
- Screen resolution
Detailed Technical Info
Hardware and features in detail.
- Screen size
- 6.7 inches
- Resolution
- 1080 x 2400 pixels (FHD+)
- Display type
- Dynamic AMOLED 2X
- Refresh rate
- 120Hz (adaptive)
- Max brightness
- 1300 nits (peak)
- Screen protection
- Corning Gorilla Glass Victus
Display
- Screen size
- 6.7 inches
- Resolution
- 1080 x 2400 pixels (FHD+)
- Display type
- Dynamic AMOLED 2X
- Refresh rate
- 120Hz (adaptive)
- Max brightness
- 1300 nits (peak)
- Screen protection
- Corning Gorilla Glass Victus
Performance
- Processor
- Samsung Exynos 2100 (5nm)
- CPU cores
- 8-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55)
- GPU
- Mali-G78 MP14
- RAM
- 8GB LPDDR5
- AnTuTu score
- 750000 (v9)
Camera
- Main camera
- 12 MP, f/1.8, 26mm (wide), Dual Pixel PDAF, OIS
- Ultra-wide
- 12 MP, f/2.2, 13mm, 120˚, Super Steady video
- Telephoto
- 64 MP, f/2.0, 29mm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
- Front camera
- 10 MP, f/2.2, 26mm, Dual Pixel PDAF
- Video
- 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps
Battery
- Capacity
- 4800 mAh
- Charging speed
- 25W wired
- Wireless charging
- Yes (15W)
- Battery life
- Up to 15 hours web browsing
Connectivity
- 5G
- Yes (SA/NSA/Sub6)
- Wi-Fi
- Wi-Fi 6
- Bluetooth
- 5.0
- NFC
- Yes
- USB
- USB Type-C 3.2, OTG
Body & Dimensions
- Dimensions
- 161.5 x 75.6 x 7.8 mm
- Weight
- 200 grams
- Materials
- Glass front and back (Gorilla Glass Victus), aluminum frame
- Water resistance
- IP68 (1.5m 30 min)
Condition Classes
All devices are fully tested and working.
Very Good (A)
from 202,4 €
In very good condition. Minimal signs of use.
Good (B)
from 182,2 €
May have minor micro-scratches on the frame or screen that do not affect usage. Battery health 85-90%.
Above Average (C+)
from 145,7 €
Visible signs of use, scratches on the screen or body. Technically fully functional. Battery health at least 80%.
Acceptable (C)
from 145,7 €
Clearly visible signs of use. Best price.
Model characteristics
Common issues that may occur with Samsung Galaxy S21.
Green line on screen
CriticalHardware defect in the screen connection cable, which can manifest due to heat.
Battery capacity reduction
ModerateNatural wear and tear of lithium-ion batteries over 5 years.
Overheating under load
MinorEnergy efficiency limitations of the Exynos 2100 chip during intensive use.
Moisture detection error
MinorDust or dirt in the charging port causing false readings.
Repairs and Parts4/10 iFixit
Battery Replacement
The battery is strongly glued and requires removal of the screen or back glass.
Screen Replacement
Screen replacement is standard but requires transferring almost all components to a new frame.
Charging Port Repair
The charging port is on a separate daughterboard, making replacement easier than soldering the motherboard.
Spare parts are widely available in both original and high-quality analogue versions.
Environmental Impact
Buying a used device saves valuable resources.
CO₂ Saved
52 kg CO2e
Water Saved
11500 liters
E-Waste Avoided
200 grams
Reused
90%
Recycled
10%
Methodology: Fraunhofer Institute / Refurbed.com calculation model (2025)
Who Is This For?
This device is especially well-suited for these users.
Budget-conscious student
Needs a large screen for studying and entertainment but doesn't want to pay a new flagship price.
- Affordable price on the secondary market
- Large 6.7-inch screen
- Good battery life
Social media content creator
Uses the phone for photography and videography, valuing good stabilisation and 4K capability.
- High-quality 64MP camera
- Good video stabilisation
- Colour-accurate display
Pragmatic business user
Needs a reliable device that supports 5G and offers enough performance for daily work.
- Samsung DeX support
- Reliable 5G connection
- Professional appearance
Network Compatibility
Supported frequencies and carriers.
FinlandYour country
Estonia
Latvia
Lithuania
The S21+ supports all modern Baltic and Finnish frequencies, including fast 5G.
Comparisons With Other Models
How this model differs from the competition.
The S22+ offers better brightness and a newer processor, but the S21+ battery life is actually better in many tests and the price is significantly more affordable.
| Feature | Galaxy S21 | Galaxy S22+ |
|---|---|---|
| Screen brightness | 1300 nits | 1750 nits |
| Battery capacity | 4800 mAh | 4500 mAh |
| Processor | Exynos 2100 | Exynos 2200 |
The iPhone 13 Pro Max offers better video quality and longer software support, but the S21+ is lighter, more affordable, and offers a similar 120Hz screen experience.
| Feature | Galaxy S21 | iPhone 13 Pro Max |
|---|---|---|
| Weight | 200g | 240g |
| Screen refresh rate | 120Hz | 120Hz |
| System | Android | iOS |
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