Moto recently launched its two new devices in India one with Amoled Panel and the other containing 5G, there is a lot of confusion among users for the right pick. We’ll see the comparison and let you know. If you haven’t seen our Moto G51 post then check out here
Processor of Moto G51

The chipset used in the device is Qualcomm SM4350-AC Snapdragon 480+ 5G based on 8nm fabricant. It features eight cores in two clusters. A performance cluster with two ARM Cortex A76 cores at up to 2 GHz and an efficiency cluster with six small ARM Cortex A55 cores at up to 1.8 GHz. The Antutu score is 265481.
Processor of Moto G31

The chipset used in the device is MediaTek Helio G85 based on 12nm which was seen in Realme C25s. The Antutu Benchmark score is 231088, the processor is quite old but power efficient.
Display of Moto G51

The device is accompanied by a 6.8-inch full-HD+ IPS LCD (1,080×2,400 pixels) display with a 20:9 aspect ratio. The display also carries a 120Hz refresh rate and 144Hz touch sampling including a pixel density of 387 pixels per inch (PPI). There is no information on Corning Gorilla Glass protection.
Display of Moto G31

The main highlight of this device is the Display. There is a 6.4-inch AMOLED (1080 x 2400 pixels) panel with a 20:9 aspect ratio. There is a 60Hz refresh rate with a pixel density of 411 pixels per inch (PPI). There is no information on Corning Gorilla Glass protection.
Camera of Moto G51

Moto G51 carries a Triple house camera setup that includes a 50-megapixel of a primary sensor with f/1.8, also 8-megapixel ultra-wide sensor f/2.2 also a 2-megapixel of macro shooter. There is a 13-megapixel f/2.2 micron of 1.12 for quality selfies.
Camera of Moto G31

Moto G31 also carries a Triple house camera setup that includes a 50-megapixel of a primary sensor with f/1.8, also 8-megapixel ultra-wide sensor f/2.2 also a 2-megapixel of macro shooter f/2.4. There is a 13-megapixel f/2.2 micron of 1.12 for quality selfies.
Storage and Ram of Moto G51
The internal storage configuration of the smartphone is 64GB which is expandable storage up to 512GB with 4GB of Ram.
Storage and Ram of Moto G31
The internal storage configuration of the smartphone is 64GB which is expandable storage up to 1TB with 4GB of Ram. Moto G31 also has other storage options that vary with RAM.
Battery and Charging

Both the device carries the same capacity of battery i.e 5,000mAh with a 20w fast charger. The company claim 30+ hours of non-stop power.
Software Support
Like Battery, both devices run on Android 11 and will get an assured upgrade to Android 12 and two years of security updates.
Colour Options of Moto G51

Moto G51 comes in two different designs. Indigo Blue and Bright Silver with a plastic back.
Colour Options of Moto G31

Moto G31 comes in two different colors. Meteorite Grey and Baby Blue with Water-repellent design.
Other options of Moto G51
Connectivity options on the Motorola Moto G51 include Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth v5.10, NFC, USB Type-C, FM radio, 3G, and 4G (with support for Band 40 used by some LTE networks in India) and 12 5G bands. There is a side-mounted fingerprint scanner for security purposes.
Other options of Moto G31
Connectivity options on the Motorola Moto G51 include Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth v5.10, NFC, USB Type-C, FM radio, 3G, and 4G (with support for Band 40 used by some LTE networks in India). There is a side-mounted fingerprint scanner for security purposes.
Price
As Moto G51 is 5G so the price is Rs 14,999 with only one Storage and Ram option.
Moto G31 starts at Rs 12,999 for the base variant of 4/64GB and Rs 14,999 for 6/128 GB.
Conclusion
If you are willing to use the device for two years then you should go with Moto G31 with an OLED display and good performance but if you are thinking of more than two then buy Moto G51.
There is a slight chance that some users go with the 6GB variant of Moto G31 but, that’s a waste of money cause there are other better options and, you can get 5G at the same price.
Those who like to watch series and movies should pick G31 as a wise option and better display in the price segment.