Google Pixel 4a 5G vs Samsung Galaxy A51 5G
A spec-by-spec comparison of the Google Pixel 4a 5G and the Samsung Galaxy A51 5G, 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 |
|---|
| Price | $320 | $99 |
| Our rating | 8/10 | 7/10 |
| Battery | 3,885 mAh | 4,500 mAh |
| Wired charging | 18W | 15W |
| RAM (max) | 6 GB | 8 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 | 187 g |
| Released | Sep 2020 | Apr 2020 |
Summary: Google Pixel 4a 5G is ahead on our rating, wired charging, weight (lower is lighter). Samsung Galaxy A51 5G is ahead on battery, ram (max), screen size, main camera.
★ Which should you buy? Samsung Galaxy A51 5G 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 |
|---|
| Type | OLED, HDR | Super AMOLED |
| 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 |
|---|
| OS | Android 11, upgradable to Android 14 | Android 10, upgradable to Android 13, One UI 5 |
| Chipset | Qualcomm SM7250 Snapdragon 765G 5G (7 nm) | Exynos 980 (8 nm) (Note: Some carrier variants, like Verizon, used Snapdragon 765G) |
| CPU | Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) | Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex-A55) |
| GPU | Adreno 620 | Mali-G76 MP5 |
Memory
| Google Pixel 4a 5G | Samsung Galaxy A51 5G |
|---|
| Card slot | No | microSDXC (dedicated slot) |
| Internal | 128GB 6GB RAM | 128GB 6GB RAM, 128GB 8GB RAM |
| Storage Type | UFS 2.1 | — |
Main Camera
| Google Pixel 4a 5G | Samsung Galaxy A51 5G |
|---|
| 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 |
|---|
| Modules | 8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm | — |
| Features | HDR | HDR |
| Video | 1080p@30fps | 4K@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 |
|---|
| Type | Li-Po 3885 mAh, non-removable | Li-Po 4500 mAh, non-removable |
| Charging | 18W wired, PD2.0 | 15W wired |
Body
| Google Pixel 4a 5G | Samsung Galaxy A51 5G |
|---|
| Dimensions | 153.9 x 74 x 8.2 mm (Sub-6) or 8.5 mm (Sub-6 and mmWave) | 158.9 x 73.6 x 8.7 mm (6.26 x 2.90 x 0.34 in) |
| Weight | 168 g (5G Sub-6); 171 g (5G Sub-6 and mmWave) | 187 g (6.60 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) or Hybrid Dual SIM (Nano-SIM, dual stand-by) |
Comms
| Google Pixel 4a 5G | Samsung Galaxy A51 5G |
|---|
| 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/region dependent) |
| USB | USB Type-C 3.1 | USB Type-C 2.0, OTG |
| Radio | — | FM Radio |
Launch
| Google Pixel 4a 5G | Samsung Galaxy A51 5G |
|---|
| Announced | 2020, September 30 | 2020, April 8 |
| Status | Available. Released 2020, November 05 | Released 2020, April 29 |
Frequently asked questions
Which has the better battery, Google Pixel 4a 5G or Samsung Galaxy A51 5G?
Samsung Galaxy A51 5G — 3,885 mAh for the Google Pixel 4a 5G versus 4,500 mAh for the Samsung Galaxy A51 5G.
Which has more RAM, Google Pixel 4a 5G or Samsung Galaxy A51 5G?
Samsung Galaxy A51 5G — 6 GB for the Google Pixel 4a 5G versus 8 GB for the Samsung Galaxy A51 5G.
Which is lighter, Google Pixel 4a 5G or Samsung Galaxy A51 5G?
Google Pixel 4a 5G — 168 g for the Google Pixel 4a 5G versus 187 g for the Samsung Galaxy A51 5G.
Which is newer, Google Pixel 4a 5G or Samsung Galaxy A51 5G?
Google Pixel 4a 5G — Sep 2020 for the Google Pixel 4a 5G versus Apr 2020 for the Samsung Galaxy A51 5G.
Is the Google Pixel 4a 5G or the Samsung Galaxy A51 5G rated higher?
We rate the Google Pixel 4a 5G 8/10 and the Samsung Galaxy A51 5G 7/10.
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