POCO X3 NFC vs Samsung Galaxy A51
A spec-by-spec comparison of the POCO X3 NFC and the Samsung Galaxy A51, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Our rating | 8/10 | 7/10 |
| Battery | 5,160 mAh | 4,000 mAh |
| Wired charging | 33W | 15W |
| RAM (max) | 8 GB | 8 GB |
| Storage (max) | 128 GB | 256 GB |
| Screen size | 6.67 in | 6.5 in |
| Refresh rate | 120 Hz | — |
| Main camera | 64 MP | 48 MP |
| Weight (lower is lighter) | 215 g | 172 g |
| Released | Sep 2020 | Dec 2019 |
Summary: POCO X3 NFC is ahead on our rating, battery, wired charging, screen size. Samsung Galaxy A51 is ahead on storage (max), weight (lower is lighter).
★ Which should you buy? POCO X3 NFC is the stronger overall pick on the measured specs.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Type | IPS LCD, 120Hz, HDR10, 450 nits (typ) | Super AMOLED, 16M colors |
| Size | 6.67 inches | 6.5 inches, 102.0 cm² (~87.4% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 3 |
| Features | — | Infinity-O Display |
Platform
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| OS | Android 10, upgradable to Android 12, MIUI 14 | Android 10, upgradable to Android 13, One UI 5.1 |
| Chipset | Qualcomm Snapdragon 732G (8 nm) | Exynos 9611 (10 nm) |
| CPU | Octa-core (2x2.3 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver) | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| GPU | Adreno 618 | Mali-G72 MP3 |
Memory
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM (UFS 2.1) | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM |
Main Camera
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Quad | 64 MP, f/1.9, (wide), 1/1.73", 0.8µm, PDAF (Sony IMX682 sensor); 13 MP, f/2.2, 119˚ (ultrawide), 1.0µm; 2 MP, f/2.4, (macro); 2 MP, f/2.4, (depth) | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF; 12 MP, f/2.2, 123˚ (ultrawide); 5 MP, f/2.4, (macro); 5 MP, f/2.4, (depth) |
| Features | Dual-LED flash, HDR, panorama | LED flash, panorama, HDR |
| Video | 4K@30fps, 1080p@30/120fps, 720p@960fps; gyro-EIS | 4K@30fps, 1080p@30/120fps; gyro-EIS |
Selfie Camera
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Single | 20 MP, f/2.2, (wide), 1/3.4", 0.8µm | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
| Features | HDR, panorama | HDR |
| Video | 1080p@30fps | 4K@30fps, 1080p@30fps |
Battery
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Type | Li-Po 5160 mAh, non-removable | Li-Po 4000 mAh, non-removable |
| Charging | 33W wired, 100% in 65 min (advertised) | 15W wired |
Body
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Dimensions | 165.3 x 76.8 x 9.4 mm | 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in) |
| Weight | 215g | 172 g (6.07 oz) |
| Build | Glass front (Gorilla Glass 5), plastic back, aluminum frame | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| IP Rating | IP53, dust and splash protected | — |
Comms
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| 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 |
| Bluetooth | 5.1, A2DP, LE | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS |
| NFC | Yes | Yes (market/region dependent) |
| Infrared port | Yes | — |
| Radio | FM radio, recording | — |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0 |
Launch
| POCO X3 NFC | Samsung Galaxy A51 |
|---|
| Announced | September 2020 | December 12, 2019 |
| Status | Available. Released 2020, September 08 | — |
| Released | — | December 16, 2019 |
Frequently asked questions
Which has the better battery, POCO X3 NFC or Samsung Galaxy A51?
POCO X3 NFC — 5,160 mAh for the POCO X3 NFC versus 4,000 mAh for the Samsung Galaxy A51.
Which is lighter, POCO X3 NFC or Samsung Galaxy A51?
Samsung Galaxy A51 — 215 g for the POCO X3 NFC versus 172 g for the Samsung Galaxy A51.
Which is newer, POCO X3 NFC or Samsung Galaxy A51?
POCO X3 NFC — Sep 2020 for the POCO X3 NFC versus Dec 2019 for the Samsung Galaxy A51.
Is the POCO X3 NFC or the Samsung Galaxy A51 rated higher?
We rate the POCO X3 NFC 8/10 and the Samsung Galaxy A51 7/10.
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