Samsung Galaxy A51 vs. Motorola Moto G Power (2021): A Detailed Comparison
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🏆 Quick Verdict
For the average user prioritizing longevity and value, the Motorola Moto G Power (2021) is the better choice. While the Samsung Galaxy A51 boasts a brighter display, the Moto G Power’s efficient Snapdragon 662 chipset and competitive pricing make it a more practical everyday device.
| PHONES | ||
|---|---|---|
| Phone Names | Samsung Galaxy A51 | Motorola Moto G Power (2021) |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 25, 26, 29, 30, 38, 41, 66, 71 |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / CDMA / HSPA / EVDO / LTE |
| 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U | CDMA2000 1xEV-DO | |
| Launch | ||
|---|---|---|
| Announced | 2019, December 12. Released 2019, December 16 | 2021, January 08 |
| Status | Discontinued | Available. Released 2021, January 14 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | Glass front, plastic back, plastic frame |
| Dimensions | 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in) | 165.3 x 75.9 x 9.5 mm (6.51 x 2.99 x 0.37 in) |
| SIM | · Nano-SIM· Nano-SIM + Nano-SIM | Nano-SIM |
| Weight | 172 g (6.07 oz) | 206.5 g (7.30 oz) |
| - | Water-repellent coating | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 3 | - |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) | 720 x 1600 pixels, 20:9 ratio (~266 ppi density) |
| Size | 6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio) | 6.6 inches, 105.2 cm2 (~83.8% screen-to-body ratio) |
| Type | Super AMOLED | IPS LCD |
| Platform | ||
|---|---|---|
| CPU | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Exynos 9611 (10 nm) | Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | Mali-G72 MP3 | Adreno 610 |
| OS | Android 10, upgradable to Android 13, One UI 5 | Android 10 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM | 32GB 3GB RAM, 64GB 4GB RAM |
| UFS 2.0 | eMMC 5.1 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, panorama, HDR | LED flash, HDR, panorama |
| Quad | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens | - |
| Triple | - | 48 MP, f/1.7, (wide), 1/2.0", 0.8µm, PDAF 2 MP (macro) Auxiliary lens |
| Video | 4K@30fps, 1080p@30/120fps; gyro-EIS | 1080p@30/60fps, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm | 8 MP, f/2.0, 1.12µm |
| Video | 4K@30fps, 1080p@30fps | 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| NFC | Yes | No |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO |
| Radio | FM radio | FM radio |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0 |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer |
| Virtual proximity sensing ANT+ | - | |
| Battery | ||
|---|---|---|
| Charging | 15W wired | 15W wired |
| Type | Li-Po 4000 mAh, non-removable | Li-Po 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink | Flash Gray, Polar Silver |
| Models | SM-A515F, SM-A515F/DSN, SM-A515F/DS, SM-A515F/DST, SM-A515F/DSM, SM-A515F/N, SM-A515U, SM-A515U1, SM-A515W, SM-A515X, SM-S515DL | - |
| Price | About 100 EUR | About 60 EUR |
| SAR | 0.80 W/kg (head) 0.67 W/kg (body) | - |
| SAR EU | 0.37 W/kg (head) 1.59 W/kg (body) | - |
| Pricing | ||
|---|---|---|
| 128GB 4GB RAM | $ 299.99 | - |
| 128GB 6GB RAM | $ 674.99 | - |
| 64GB 4GB RAM | $ 211.50 | - |
| RENEWED | £ 179.00 | - |
| Tests | ||
|---|---|---|
| Audio quality | Noise -93.1dB / Crosstalk -87.3dB | - |
| Battery life | Endurance rating 86h | - |
| Camera | Photo / Video | - |
| Display | Contrast ratio: Infinite (nominal) | - |
| Loudspeaker | -28.6 LUFS (Average) | - |
| Performance | AnTuTu: 113051 (v7), 175363 (v8) GeekBench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen) | - |
Samsung Galaxy A51
- Brighter display for better outdoor visibility
- Potentially more refined image processing
- More RAM options for improved multitasking
- Higher price point
- Exynos 9611 may throttle under sustained load
- 15W charging is relatively slow
Motorola Moto G Power (2021)
- Significantly lower price
- More power-efficient Snapdragon 662 chipset
- Excellent battery life focus
- Display likely less vibrant and bright
- Performance may be less responsive for demanding tasks
- Camera system likely less feature-rich
Display Comparison
The Samsung Galaxy A51 features a display capable of reaching 636 nits of peak brightness, offering a noticeably more vivid experience in direct sunlight compared to the Moto G Power (brightness data unavailable, but expected to be lower). While the Moto G Power’s display specs are less detailed, Samsung’s ‘Infinite’ contrast ratio (nominal) suggests superior black levels and overall image quality. However, the A51’s price point suggests it may not utilize advanced panel technologies like LTPO, potentially impacting power efficiency. The A51’s higher brightness benefits outdoor visibility, while the Moto G Power likely prioritizes power conservation.
Camera Comparison
Both devices offer photo and video capabilities, but detailed camera specifications are limited. The A51’s camera system likely benefits from Samsung’s image processing algorithms, potentially delivering more vibrant and detailed photos. However, without sensor size or aperture information, it’s difficult to assess the low-light performance of either device. The Moto G Power’s camera is likely tuned for simplicity and reliability, focusing on consistent results in good lighting conditions. The presence of a 2MP macro camera on the A51 is unlikely to significantly enhance the photography experience.
Performance
The Samsung Galaxy A51’s Exynos 9611 (10nm) chipset, with its octa-core configuration (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), offers a theoretical performance advantage over the Motorola Moto G Power’s Qualcomm Snapdragon 662 (11nm). The Snapdragon 662’s 11nm process, however, is more efficient, potentially leading to better sustained performance and thermal management. While the A51’s CPU clock speeds are higher, the Snapdragon 662’s Kryo cores are designed for optimized power efficiency. The A51’s RAM options (4GB/6GB) are more varied, potentially impacting multitasking performance, but the Snapdragon 662 is well-optimized for its target market.
Battery Life
The Samsung Galaxy A51 boasts an endurance rating of 86 hours, a strong result. However, the Moto G Power (2021) is specifically designed for extended battery life, and while its endurance rating is not provided, Motorola’s ‘Power’ branding indicates a significant focus on longevity. Both devices support 15W wired charging, meaning charging times will be comparable. The Snapdragon 662’s efficiency likely contributes to longer real-world usage on the Moto G Power, offsetting any potential difference in battery capacity (data unavailable).
Buying Guide
Buy the Samsung Galaxy A51 if you prioritize a vibrant, brighter display for media consumption and are willing to pay a premium, especially if you find a deal on the 128GB/6GB RAM model. Buy the Motorola Moto G Power (2021) if you need exceptional battery life, a reliable processor for daily tasks, and a significantly lower price point without sacrificing core functionality.