- Home
- Compare Phones
- Samsung Galaxy S20 5G vs Samsung Galaxy S21 5G
Samsung Galaxy S20 5G vs Samsung Galaxy S21 5G
Side-by-side specs and price comparison for buyers in Algeria.

Samsung Galaxy S20 5G
Price coming soon

Samsung Galaxy S21 5G
Quick Verdict
Who wins each category, side by side.
Better price
Even
Faster chip
Even
Bigger battery
Even
Faster charging
Even
Higher-resolution camera
Even
Better display
Samsung Galaxy S20 5G
Lighter body
Samsung Galaxy S20 5G
Best value for money
Even
Full specs comparison
Display
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Size (inches) | 6.2 | 6.2 |
| Panel Type | AMOLED | AMOLED |
| Resolution Height | 3200 | 2400 |
| Resolution Width | 1440 | 1080 |
| Refresh Rate | 120 | 120 |
| Peak Brightness | 1200 | 1300 |
| PPI | 563 | 421 |
| Glass Type | Corning Gorilla Glass 6 | Corning Gorilla Glass Victus |
| Screen-to-body | 89.5 | 87.2 |
Platform
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| CPU | Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USA | 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-G77 MP11 - GlobalAdreno 650 - USA | Mali-G78 MP14 - InternationalAdreno 660 - USA/China |
| Chipset Name | Exynos 990 (7 nm + ) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm + ) | Exynos 2100 - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) |
| Process (nm) | — | 5 |
| OS Name | Android | Android |
| UI Skin | One UI 5.1 | One UI 6.1 |
| OS Version | 10 | 11 |
Memory
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Card Slot | microSDXC (uses shared SIM slot) | No |
| Variants | 128GB 8GB RAM, 128GB 12GB RAM | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM |
Main Camera
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10 + , stereo sound rec., gyro-EIS & OIS | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10 + , stereo sound rec., gyro-EIS |
| Features | LED flash, auto-HDR, panorama | LED flash, auto-HDR, panorama |
| Count | 3 | 3 |
| Telephoto | 64 MP, f/2, 29mm, (telephoto) | 64 MP, f/2, 29mm, (telephoto) |
| ultrawide | 12 MP, f/2.2, 13mm, (ultrawide) | 12 MP, f/2.2, 13mm, (ultrawide) |
| Wide | 12 MP, f/1.8, 26mm, (wide) | 12 MP, f/1.8, 26mm, (wide) |
Selfie Camera
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Video | 4K@30/60fps, 1080p@30fps | 4K@30/60fps, 1080p@30fps |
| Features | HDR | HDR |
| Count | 1 | 1 |
| Lens | 10 MP, f/2.2, 26mm, (wide) | 10 MP, f/2.2, 26mm, (wide) |
Battery
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Capacity (mAh) | 4000 | 4000 |
| Chemistry | Li-Ion | Li-Ion |
| Wired Charging (W) | 25 | 25 |
| Wireless Charging (W) | 15 | 15 |
Body
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Build | Glass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame | Glass front (Gorilla Glass Victus), plastic back, aluminum frame |
| SIM | Nano-SIM + eSIMNano-SIM + Nano-SIM | Nano-SIM + eSIMNano-SIM + Nano-SIM + eSIM (max 2 at a time) |
| Height (mm) | 151.7 | 151.7 |
| Thickness (mm) | 7.9 | 7.9 |
| Weight (g) | 163 | 169 |
| Width (mm) | 69.1 | 71.2 |
Launch
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Announced | 2020, February 11 | 2021, January 14 |
| Status | Available. Released 2020, March 06 | Available. Released 2021, January 29 |
Network
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| 2G Bands | GSM 850, 900, 1800, 1900 | GSM 850, 900, 1800, 1900 |
| 3G Bands | HSDPA 850, 900, 1700(AWS), 1900, 2100 | HSDPA 850, 900, 1700(AWS), 1900, 2100 |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G981B | 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-G991U1 |
| 5G Bands | 1, 3, 5, 7, 8, 28, 40, 77, 78 SA/NSA/Sub6 - SM-G981B | 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1 |
| Speed | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5 + Gbps DL) | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5 + Gbps DL) |
| Technology | GSM, CDMA, HSPA, EVDO, LTE, 5G | GSM, CDMA, HSPA, EVDO, LTE, 5G |
Connectivity
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Bluetooth | 5 | 5 |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, BDS, GALILEO | GPS, GLONASS, BDS, GALILEO |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | FM radio (Snapdragon model only; market/operator dependent) |
| USB Type | Type-C | Type-C |
| USB Version | 3.2 | 3.2 |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 |
Sound
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| 3.5mm Jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
Features
| Spec | Samsung Galaxy S20 5G | Samsung Galaxy S21 5G |
|---|---|---|
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
Buying advice for Algeria
Both Samsung Galaxy S20 5G and Samsung Galaxy S21 5G are sold in Algeria, but they fit different priorities.
Other popular comparisons


Samsung Galaxy S26 Ultra vs Apple iPhone 17 Pro Max
Samsung compared to Apple

Samsung Galaxy S26 Ultra vs Google Pixel 10 Pro XL
Samsung compared to Google


Samsung Galaxy S26 Ultra vs Xiaomi 15 Ultra
Samsung compared to Xiaomi


Apple iPhone 17 Pro Max vs Xiaomi 15 Ultra
Apple compared to Xiaomi

Apple iPhone 17 Pro Max vs Google Pixel 10 Pro XL
Apple compared to Google


Samsung Galaxy S26+ vs Apple iPhone 17
Samsung compared to Apple