DailyTechPricesDevice Comparison
| Galaxy S21 | Galaxy A27 | |
|---|---|---|
| LAUNCH DATE | ||
| Announced | January 29, 2021 | 2026, June 10 |
| Released | 2021-01-29 | 2026-07-03 |
| Status | Available | Available |
| NETWORK | ||
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM850, GSM900, DCS1800, PCS1900 |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO | B1(2100), B2(1900), B4(AWS), B5(850), B8(900) |
| 4G LTE | 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; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B | B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B17(700), B20(800), B26(850), B28(700), B32(1500), B66(AWS-3); B38(2600), B40(2300), B41(2500) |
| 5G | 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1; 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B | N1(2100), N3(1800), N5(850), N7(2600), N8(900), N20(800), N28(700), N66(AWS-3); N38(2600), N40(2300), N41(2500), N77(3700), N78(3500) |
| Speed | LTE, 5G | HSPA, LTE, 5G |
| Technology | 5G/4G/LTE/GSM | 2G GSM, 3G WCDMA, 4G LTE FDD, 4G LTE TDD, 5G Sub6 FDD, 5G Sub6 TDD |
| BODY | ||
| Build | Glass front (Gorilla Glass Victus), plastic back, aluminum frame | Glass front (Gorilla Glass Victus+), Plastic frame, Glass back (Gorilla Glass Victus+) |
| Dimensions | 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in) | 162.4 x 78.2 x 7.8 mm |
| IP Rating | IP68 dust/water resistant (up to 1.5m for 30 min) | IP64 Dust Tight and Water Resistant (water splashes) |
| SIM | Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time) | Dual-SIM; Nano-SIM (4FF); SIM 1 + Hybrid (SIM or MicroSD) |
| Weight | 169 g (Sub6), 171 g (mmWave) (5.96 oz) | 200 g |
| DISPLAY | ||
| Brightness | 1300 nits (peak) | 800 nits (measured) |
| Color | — | 16M |
| Protection | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus+ |
| Refresh Rate | 120Hz | 120 Hz |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~421 ppi density) | 1080 x 2340 (FHD+) |
| Screen-to-body | ~87.2% | ~86.8% |
| Size | 6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio) | 6.7 inches |
| Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak) | Super AMOLED |
| PLATFORM | ||
| CPU | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China | Octa-Core, 2.4GHz, 1.8GHz |
| Chipset | Exynos 2100 (5 nm) - International / Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China | Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm) |
| GPU | Mali-G78 MP14 - International Adreno 660 - USA/China | Adreno 710 |
| OS | Android 11, up to 4 major Android upgrades, One UI 6.1 | Android |
| MEMORY | ||
| Card slot | No | microSD, up to 2 TB |
| Internal | 128GB, 256GB | 128 GB |
| RAM | 6GB RAM, 8GB RAM | 6 GB |
| Storage/RAM variants | 128GB, 256GB; 6GB RAM, 8GB RAM | 128 GB; 6 GB RAM |
| MAIN CAMERA | ||
| Features | LED flash, auto-HDR, panorama | Autofocus: Yes; OIS: Yes; Flash: Yes |
| MAIN CAMERA | 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video | 50 MP main; 5 MP ultrawide; 2 MP macro; apertures f/1.8, f/2.2, f/2.4 respectively |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS | 4K at 30 fps |
| SELFIE CAMERA | ||
| Features | HDR | HDR |
| Selfie camera | 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF | 12 MP, f/2.2; fixed focus; no OIS |
| Video | 4K@30/60fps, 1080p@30fps | 1080p@30fps |
| SOUND | ||
| 3.5mm jack | No | USB Type-C |
| Loudspeaker | Yes, with stereo speakers | Mono speaker |
| COMMUNICATION | ||
| Bluetooth | 5.0, A2DP, LE | Bluetooth v5.1 |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, BDS, GALILEO | GPS, Glonass, Beidou, Galileo, QZSS |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | No |
| USB | USB Type-C 3.2, OTG | USB Type-C; USB 2.0 |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | 802.11a/b/g/n/ac 2.4GHz+5GHz, VHT80 |
| FEATURES | ||
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity Sensing |
| BATTERY | ||
| Capacity | 4000 mAh | 5000 mAh |
| Charging Type | 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless | 25W wired; no wireless charging |
| Type | Li-Ion 4000 mAh | Non-removable |
| ADDITIONAL INFORMATION | ||
| Colors | Phantom Gray, Phantom White, Phantom Violet, Phantom Pink | Black, Blue, Light Green, Light Pink |
| Compatibility | — | Network bands and SIM details: Samsung Ireland SKU SM-A276BZKBEUB; regional variants may differ. |
| Environmental | — | 5.3% recycled content (manufacturer ECO Design specification for this regional SKU) |
| Launch Price (USD) | $250.00 (reference only — see Price in Nigeria above for the actual retail price) | — |
| Models | SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09 | SM-A276BZKBEUB |
| Price in Nigeria | ₦382,500 | ₦420,000 |
| TESTS | ||
| Battery Endurance | — | Up to 23 hours video playback (manufacturer rating; actual use varies) |
| SECURITY | ||
| Security | Biometric security: Fingerprint (under display, ultrasonic). | Fingerprint sensor |