Google Pixel 4a 5G vs Samsung Galaxy A51 5G UW
A spec-by-spec comparison of the Google Pixel 4a 5G and the Samsung Galaxy A51 5G UW, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Our rating | 8/10 | 7/10 |
| Battery | 3,885 mAh | 4,500 mAh |
| Wired charging | 18W | 15W |
| RAM (max) | 6 GB | 6 GB |
| Storage (max) | 128 GB | 128 GB |
| Screen size | 6.2 in | 6.5 in |
| Main camera | 16 MP | 48 MP |
| Weight (lower is lighter) | 168 g | — |
| Released | Sep 2020 | Aug 2020 |
Summary: Google Pixel 4a 5G is ahead on our rating, wired charging. Samsung Galaxy A51 5G UW is ahead on battery, screen size, main camera.
★ Which should you buy? Samsung Galaxy A51 5G UW is the stronger overall pick on the measured specs.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Type | OLED, HDR | Super AMOLED, Infinity-O Display |
| Size | 6.2 inches, 95.7 cm2 (~84.1% screen-to-body ratio) | 6.5 inches |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~413 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
Platform
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| OS | Android 11, upgradable to Android 14 | Android 10, upgradable to Android 13 with One UI 5.1 |
| Chipset | Qualcomm SM7250 Snapdragon 765G 5G (7 nm) | Qualcomm Snapdragon 765G 5G (7 nm) |
| CPU | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) |
| GPU | Adreno 620 | Adreno 620 |
Memory
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Card slot | No | microSDXC (dedicated slot) |
| Internal | 128GB 6GB RAM | 128GB 6GB RAM |
| Storage Type | UFS 2.1 | — |
Main Camera
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Modules | 12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS; 16 MP, f/2.2, 107˚ (ultrawide), 1.0µm | — |
| Features | LED flash, Pixel Shift, Auto-HDR, panorama | LED flash, panorama, HDR |
| Video | 4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS | 4K@30fps, 1080p@30fps |
| Quad | — | 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/2.2, (depth) |
Selfie Camera
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Modules | 8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm | — |
| Features | HDR | HDR |
| Video | 1080p@30fps | 1080p@30fps |
| Single | — | 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm |
Battery
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Type | Li-Po 3885 mAh, non-removable | Li-Po 4500 mAh, non-removable |
| Charging | 18W wired, PD2.0 | 15W fast charging |
Body
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Dimensions | 153.9 x 74 x 8.2 mm (Sub-6) or 8.5 mm (Sub-6 and mmWave) | 158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in) |
| Weight | 168 g (5G Sub-6); 171 g (5G Sub-6 and mmWave) | 188.8 g (6.66 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Nano-SIM + eSIM | Single SIM (Nano-SIM) |
Comms
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| 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 | 5.0, A2DP, LE, aptX HD | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, GALILEO, QZSS, BDS | GPS, GLONASS, GALILEO, BDS |
| NFC | Yes | Yes (market dependent) |
| USB | USB Type-C 3.1 | USB Type-C 2.0, USB On-The-Go |
| Radio | — | FM Radio |
Launch
| Google Pixel 4a 5G | Samsung Galaxy A51 5G UW |
|---|
| Announced | 2020, September 30 | August 4, 2020 |
| Status | Available. Released 2020, November 05 | Available. Released 2020, August 14 |
Frequently asked questions
Which has the better battery, Google Pixel 4a 5G or Samsung Galaxy A51 5G UW?
Samsung Galaxy A51 5G UW — 3,885 mAh for the Google Pixel 4a 5G versus 4,500 mAh for the Samsung Galaxy A51 5G UW.
Which is newer, Google Pixel 4a 5G or Samsung Galaxy A51 5G UW?
Google Pixel 4a 5G — Sep 2020 for the Google Pixel 4a 5G versus Aug 2020 for the Samsung Galaxy A51 5G UW.
Is the Google Pixel 4a 5G or the Samsung Galaxy A51 5G UW rated higher?
We rate the Google Pixel 4a 5G 8/10 and the Samsung Galaxy A51 5G UW 7/10.
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