Samsung Galaxy M31is priced at ₹14,999 & Samsung Galaxy M21 is priced at ₹12,999.
Samsung Galaxy M31 has a dimension of 159.2 x 75.1 x 8.9 mm & a Weight of 191 g while Samsung Galaxy M21 has a dimension of 159 x 75.1 x 8.9 mm & a Weight of 188 g.
Both models have a fingerprint sensor.
Samsung Galaxy M31 is available in Black & Blue color. Samsung Galaxy M21 is available in Midnight Blue & Raven Black.
Both the mobiles have a 6.4 inches Color Super AMOLED screen (16M) Water Drop Notch display. Samsung Galaxy M31 & Samsung Galaxy M21 both have a display with resolutions of 1080 x 2340 pixels.
Samsung Galaxy M31 has a pixel density of 411 PPI. Samsung Galaxy M21 has a pixel density of 403PPI.
Samsung Galaxy M31 has a Samsung Exynos 9611 2.3 GHz, Octa Core Processor with Android v10.0 while Samsung Galaxy M21 has Exynos 9611 (10nm) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) processor with Android v10.0 & One UI 2.
Samsung Galaxy M31 is fueled with 6GB RAM & 64GB ROM. Samsung Galaxy M21 has a 64GB 4GB RAM &128GB storage.
Samsung Galaxy M31 runs on Samsung One UI.
Samsung Galaxy M31 has a rear camera of 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF + 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm + 5 MP, f/2.2, (depth). The camera supports AF Phase Detection, Auto Flash, Bokeh Effect, Continuos Shooting, Exposure compensation, Face detection, Geo-tagging, High Dynamic Range mode (HDR), ISO control, ISOCELL Plus, Touch to focus, White balance presets.
Samsung Galaxy M21 has a rear camera of 48 MP f/2 (Wide Angle)+8 MP f/2.2 (Ultra Wide)+5 MP f/2.4 (Macro)+5 MP f/2.4 (Depth Sensor) with autofocus & a front camera of 20 MP f/2.2 (Wide Angle).
The camera also has features LIVE FOCUS, NIGHT MODE, PRO MODE, ULTRA WIDE & SCENE OPTIMIZER.
Samsung Galaxy M31 has a 6000mAh Lithium-ion (Li-ion) battery with 15W Fast Charging which gives you a Talk Time of 2 days.
Samsung Galaxy M21 has a 6000mAh battery Lithium-ion (Li-ion) battery.