Compare phones
| Global Score | |
| 36.7 | 85.5 |
| Basic Information | |
| Nokia | Samsung |
| Symbian 9.1 | Android 11, 10 |
| 2005-04-27 | 2019-12-27 |
| 4.44 x 2.16 x 0.86 inches | 6.24 x 2.90 x 0.31 inches |
| 5.64 ounces | 6.07 ounces |
| -- | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 269.00 | $ 282.00 |
| Display / Screen | |
| -- | 6.5 inches |
| 176 x 208 pixels | 2400 x 1080 pixels |
| TFT | Super AMOLED |
| 151 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 5.8 | 8.1 |
| Performance | |
| -- | Samsung Exynos 9611 chipset |
| ARM9 (Single-Core 220 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 64 MB RAM | 4 GB RAM |
| GPU | Mali-G72 MP3 GPU |
| 5.85 | 9.27 |
| Storage | |
| 4 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 2.5 | 14.14 |
| Camera | |
| 2.00 MP | 48.00 MP + 32.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| -- | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 4.73 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| UMTS, EDGE and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 2.8 | 6.7 |
| Battery Life | |
| 900mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 190 hours standby time 4 hours talk time | -- |
| 2.4 | 5.92 |
| Other Features | |
| Bluetooth 1.2 | Bluetooth 5.0 |
| -- | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| -- | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A51 has an overall score of 85.5, which is way better than the Nokia N91's global score of 36.7. The Galaxy A51 comes with Android 11 OS, and Nokia N91 has Symbian 9.1 OS. Galaxy A51's body is notably newer and notably thinner, but also a bit heavier than Nokia N91. Samsung Galaxy A51 counts with a way better hardware performance than Nokia N91, because it has more RAM and 7 more CPU cores.
Galaxy A51 features a lot better screen than Nokia N91, because it has a lot better 1080 x 2400 pixels resolution and a much better count of pixels per inch in the display. Galaxy A51 counts with a very superior camera than Nokia N91, because it has a camera with way more mega pixels. Galaxy A51 counts with a way bigger memory capacity to store more apps and games than Nokia N91, because it has a SD extension slot that holds a maximum of 512 GB and more internal storage capacity.
The Samsung Galaxy A51 has a really longer battery lifetime than Nokia N91, because it has a 4000mAh battery size.
The Galaxy A51 costs a bit more money than Nokia N91, but you can get a much better phone for that extra money.
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