Compare Galaxy A21s with 4149 devices. You can see which you should buy through this compiled table

Color:/ /, Dimensions (width x height x thickness):2.8 inches (71 mm) x 5.6 inches (143 mm) x 0.4 inches (9.2 mm), Weight:140 oz (140 g), Display type:IGZO, Screen resolution (width x height):720 x 1280, Pixel density:293 ppi, Display size:5 inch, OS:Android, Chipset:Snapdragon 617 MSM8952, CPU specs:1.5GHz×8(OctaCore), RAM size:2GB, Storage size:16GB, Battery capacity:2810 mAh, Rear-camera resolution:13.1 MP, Front-camera resolution:5 MP

Color:Black/Blue, Dimensions (width x height x thickness):3.2 inches (82 mm) x 6.0 inches (152.5 mm) x 0.4 inches (9.8 mm), Weight:190 oz (190 g), Display type:IPS LCD, Screen resolution (width x height):1080 x 2160, Pixel density:409 ppi, Display size:5.9 inch, OS:Android, Chipset:Mediatek MT6757CD Helio P25, CPU specs:2.5GHz+1.4GHz×8(OctaCore), RAM size:6GB, Storage size:64GB, Battery capacity:4500 mAh, Rear-camera resolution:13 MP, Front-camera resolution:8 MP

Color:Klein Blue/Sakura Pink/Midnight Black, Dimensions (width x height x thickness):2.8 inches (71.2 mm) x 5.9 inches (148.6 mm) x 0.3 inches (7.4 mm), Weight:145 oz (145 g), Display type:LTPS IPS LCD, Screen resolution (width x height):1080 x 2280, Pixel density:431 ppi, Display size:5.84 inch, OS:Android, Chipset:HiSilicon Kirin 659, CPU specs:2.36GHz+1.7GHz×8(OctaCore), RAM size:4GB, Storage size:128GB, Battery capacity:3000 mAh, Rear-camera resolution:16 MP, Front-camera resolution:24 MP

Color:Astro Black/Ice Platinum/Terra Gold/Marine Blue/Mystic White/Raspberry Rose/Moroccan Blue/Lavender Violet, Dimensions (width x height x thickness):2.8 inches (71.9 mm) x 5.9 inches (148.9 mm) x 0.3 inches (7.9 mm), Weight:163 oz (163 g), Display type:IPS LCD, Screen resolution (width x height):1440 x 2880, Pixel density:564 ppi, Display size:5.7 inch, OS:Android, Chipset:Qualcomm MSM8996 Snapdragon 821, CPU specs:2.35GHz+1.6GHz×4(Quad core), RAM size:4GB, Storage size:128GB, Battery capacity:3300 mAh, Rear-camera resolution:13 MP, Front-camera resolution:5 MP

Color:Space Black/Luxe White/Modern Beige/Ocean Blue/Opal Blue, Dimensions (width x height x thickness):3.1 inches (79.3 mm) x 6.3 inches (159.6 mm) x 0.3 inches (8.6 mm), Weight:192 oz (192 g), Display type:IPS LCD, Screen resolution (width x height):1440 x 2560, Pixel density:515 ppi, Display size:5.7 inch, OS:Android, Chipset:Qualcomm MSM8992 Snapdragon 808, CPU specs:1.8GHz+1.4GHz×6(Hexacore), RAM size:4GB, Storage size:64GB, Battery capacity:3000 mAh, Rear-camera resolution:16 MP, Front-camera resolution:5 MP

Color:Gold/Rose Gold, Dimensions (width x height x thickness):2.9 inches (72.9 mm) x 5.9 inches (149.1 mm) x 0.3 inches (7.7 mm), Weight:147 oz (147 g), Display type:IPS LCD, Screen resolution (width x height):720 x 1280, Pixel density:282 ppi, Display size:5.2 inch, OS:Android, Chipset:Mediatek MT6750, CPU specs:1.5GHz+1.0GHz×8(OctaCore), RAM size:3GB, Storage size:32GB, Battery capacity:2900 mAh, Rear-camera resolution:13 MP, Front-camera resolution:5 MP

Color:Gold/Black/White, Dimensions (width x height x thickness):2.5 inches (63.1 mm) x 4.8 inches (121.6 mm) x 0.4 inches (10.8 mm), Weight:126 oz (126 g), Display type:TFT, Screen resolution (width x height):480 x 800, Pixel density:233 ppi, Display size:4 inch, OS:Android, Chipset:Spreadtrum SC9830, CPU specs:1.5GHz×4(Quad core), RAM size:1GB, Storage size:8GB, Battery capacity:1500 mAh, Rear-camera resolution:5 MP

Color:White/Universe black/Mist blue, Dimensions (width x height x thickness):2.6 inches (65 mm) x 5.1 inches (129 mm) x 0.4 inches (9.5 mm), Weight:135 oz (135 g), Display type:IPS LCD, Screen resolution (width x height):720 x 1280, Pixel density:319 ppi, Display size:4.6 inch, OS:Android, Chipset:Qualcomm MSM8956 Snapdragon 650, CPU specs:1.8GHz+1.4GHz×6(Hexacore), RAM size:3GB, Storage size:32GB, Battery capacity:2700 mAh, Rear-camera resolution:23 MP, Front-camera resolution:5 MP

Color:Midnight Blue/Dark Chocolate/Dark Aubergine/White/Red/Yellow/Orange/Green/Purple, Dimensions (width x height x thickness):2.5 inches (64.4 mm) x 4.8 inches (121.6 mm) x 0.5 inches (12.1 mm), Weight:114 oz (114 g), Display type:TFT, Screen resolution (width x height):480 x 800, Pixel density:233 ppi, Display size:4 inch, OS:Android, CPU specs:1.3GHz×2(Dual core), RAM size:512.0MB, Storage size:4GB, Battery capacity:1400 mAh, Rear-camera resolution:5 MP

Color:Grey,gold,rose gold, Dimensions (width x height x thickness):2.9 inches (72.9 mm) x 5.7 inches (145.8 mm) x 0.4 inches (9.1 mm), Weight:165 oz (165 g), Screen resolution (width x height):720 x 1280, Pixel density:293 ppi, Display size:5 inch, OS:Android, Chipset:Mediatek MT6580, CPU specs:1.3GHz×4(Quad core), RAM size:1GB, Storage size:8GB, Battery capacity:2200 mAh, Rear-camera resolution:5 MP, Front-camera resolution:5 MP

Color:Black/White, Dimensions (width x height x thickness):3.0 inches (75 mm) x 5.9 inches (150.6 mm) x 0.4 inches (9.5 mm), Weight:152 oz (152 g), Display type:LTPS IPS LCD, Screen resolution (width x height):1080 x 1920, Pixel density:400 ppi, Display size:5.5 inch, OS:Android, Chipset:Qualcomm MSM8274AB Snapdragon 800, CPU specs:2.2GHz×4(Quad core), RAM size:3GB, Storage size:32GB, Battery capacity:2500 mAh, Rear-camera resolution:16 MP, Front-camera resolution:8 MP

Color:White Pearl/Black Sapphire/Gold Platinum/Blue Topaz, Dimensions (width x height x thickness):2.8 inches (70.5 mm) x 5.6 inches (143.4 mm) x 0.3 inches (6.8 mm), Weight:138 oz (138 g), Display type:Super AMOLED, Screen resolution (width x height):1440 x 2560, Pixel density:575 ppi, Display size:5.1 inch, OS:Android, Chipset:Exynos 7420 Octa, CPU specs:2.1GHz+1.5GHz×8(OctaCore), RAM size:3GB, Storage size:128GB, Battery capacity:2550 mAh, Rear-camera resolution:16 MP, Front-camera resolution:5 MP

Color:Black/Silver, Dimensions (width x height x thickness):3.0 inches (75.5 mm) x 6.1 inches (155 mm) x 0.3 inches (7.8 mm), Weight:199 oz (199 g), Display type:IPS LCD, Screen resolution (width x height):1080 x 2246, Pixel density:401 ppi, Display size:6.2 inch, OS:Android, Chipset:Mediatek MT6771 Helio P60, CPU specs:2.0GHz+2.0GHz×8(OctaCore), RAM size:6GB, Storage size:128GB, Battery capacity:3050 mAh, Rear-camera resolution:16 MP, Front-camera resolution:16 MP

Color:Pearl White/Pearl Blue, Dimensions (width x height x thickness):3.0 inches (75.2 mm) x 6.2 inches (158.7 mm) x 0.3 inches (8.6 mm), Weight:183 oz (183 g), Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:402 ppi, Display size:6.4 inch, OS:Android, Chipset:Qualcomm SDM730 Snapdragon 730G, CPU specs:2.2GHz+1.8GHz×8(OctaCore), RAM size:8GB, Storage size:128GB, Battery capacity:4000 mAh, Rear-camera resolution:64 MP, Front-camera resolution:16 MP

Color:Dream White/Titanium Black, Dimensions (width x height x thickness):2.9 inches (74.6 mm) x 6.2 inches (157.2 mm) x 0.3 inches (8.5 mm), Weight:196 oz (196 g), Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:403 ppi, Display size:6.39 inch, OS:Android, Chipset:Qualcomm SM8150 Snapdragon 855+, CPU specs:2.96GHz+2.42GHz+1.8GHz×8(OctaCore), RAM size:12GB, Storage size:512GB, Battery capacity:4000 mAh, Rear-camera resolution:48 MP, Front-camera resolution:20 MP

Color:Dark Blue/Dark Red, Dimensions (width x height x thickness):3.0 inches (75.8 mm) x 6.2 inches (158.4 mm) x 0.4 inches (9.1 mm), Weight:188 oz (188 g), Display type:LTPS IPS LCD, Screen resolution (width x height):1080 x 2280, Pixel density:400 ppi, Display size:6.3 inch, OS:Android, Chipset:Qualcomm SDM665 Snapdragon 665, CPU specs:2.0GHz+1.8GHz×8(OctaCore), RAM size:4GB, Storage size:64GB, Battery capacity:4000 mAh, Rear-camera resolution:48 MP, Front-camera resolution:25 MP

Color:Atlantis Blue/Matrix Purple/Phoenix Red, Dimensions (width x height x thickness):3.0 inches (76.6 mm) x 6.5 inches (165.3 mm) x 0.3 inches (8.8 mm), Weight:208 oz (208 g), Display type:IPS LCD, Screen resolution (width x height):1080 x 2400, Pixel density:394 ppi, Display size:6.67 inch, OS:Android, Chipset:Qualcomm SDM730 Snapdragon 730G, CPU specs:2.2GHz+1.8GHz×8(OctaCore), RAM size:8GB, Storage size:256GB, Battery capacity:4500 mAh, Rear-camera resolution:64 MP, Front-camera resolution:20 MP

Color:Cosmic Grey/Cloud Blue/Cloud Pink/Cloud White/Aura Red, Dimensions (width x height x thickness):2.7 inches (69.1 mm) x 6.0 inches (151.7 mm) x 0.3 inches (7.9 mm), Weight:163 oz (163 g), Display type:Dynamic AMOLED 2X, Screen resolution (width x height):1440 x 3200, Pixel density:565 ppi, Display size:6.2 inch, OS:Android, Chipset:Exynos 990, CPU specs:2.73GHz+2.5GHz+2.0GHz×8(OctaCore), RAM size:8GB, Storage size:128GB, Battery capacity:4000 mAh, Rear-camera resolution:64 MP, Front-camera resolution:10 MP

Color:Titanium silver/Emerald Green/Midnight Black, Dimensions (width x height x thickness):2.9 inches (73.6 mm) x 6.3 inches (160.3 mm) x 0.3 inches (8.4 mm), Weight:190 oz (190 g), Display type:OLED, Screen resolution (width x height):1080 x 2340, Pixel density:392 ppi, Display size:6.57 inch, OS:Android, Chipset:HiSilicon Kirin 990 5G, CPU specs:2.86GHz+2.36GHz+1.95GHz×8(OctaCore), RAM size:12GB, Storage size:256GB, Battery capacity:4000 mAh, Rear-camera resolution:50 MP, Front-camera resolution:32 MP

Color:Phantom Purple/Emerald Green/Midnight Black, Dimensions (width x height x thickness):2.9 inches (74.1 mm) x 6.3 inches (159.1 mm) x 0.4 inches (9 mm), Weight:185 oz (185 g), Display type:IPS LCD, Screen resolution (width x height):720 x 1600, Pixel density:278 ppi, Display size:6.3 inch, OS:Android, Chipset:Mediatek MT6762R Helio P22, CPU specs:2.0GHz+1.5GHz×8(OctaCore), RAM size:4GB, Storage size:64GB, Battery capacity:5000 mAh, Rear-camera resolution:13 MP, Front-camera resolution:8 MP

Color:Glacier Blue/Arctic White, Dimensions (width x height x thickness):3.0 inches (75.8 mm) x 6.4 inches (163.8 mm) x 0.4 inches (8.9 mm), Weight:202 oz (202 g), Display type:IPS LCD, Screen resolution (width x height):1080 x 2400, Pixel density:398 ppi, Display size:6.6 inch, OS:Android, Chipset:Qualcomm SM8150 Snapdragon 855+, CPU specs:2.96GHz+2.42GHz+1.78GHz×8(OctaCore), RAM size:8GB, Storage size:128GB, Battery capacity:4200 mAh, Rear-camera resolution:64 MP, Front-camera resolution:16 MP

Color:Black, Dimensions (width x height x thickness):3.1 inches (78 mm) x 6.7 inches (171 mm) x 0.4 inches (9.9 mm), Weight:240 oz (240 g), Display type:AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:391 ppi, Display size:6.59 inch, OS:Android, Chipset:Qualcomm SM8250 Snapdragon 865, CPU specs:2.84GHz+2.42GHz+1.8GHz×8(OctaCore), RAM size:12GB, Storage size:256GB, Battery capacity:6000 mAh, Rear-camera resolution:64 MP, Front-camera resolution:24 MP

Color:Aurora White/Aurora Green/Aurora Gray/Illusion Sunset/Red/Pink, Dimensions (width x height x thickness):2.9 inches (74.1 mm) x 6.6 inches (167.2 mm) x 0.3 inches (7.9 mm), Weight:180 oz (180 g), Display type:P-OLED, Screen resolution (width x height):1080 x 2460, Pixel density:395 ppi, Display size:6.8 inch, OS:Android, Chipset:Qualcomm SDM765 Snapdragon 765G, CPU specs:2.4GHz+2.2GHz+1.8GHz×8(OctaCore), RAM size:8GB, Storage size:128GB, Battery capacity:4300 mAh, Rear-camera resolution:48 MP, Front-camera resolution:16 MP

Color:Black, Dimensions (width x height x thickness):3.0 inches (76.7 mm) x 6.2 inches (158.5 mm) x 0.5 inches (11.9 mm), Weight:248 oz (248 g), Display type:IPS LCD, Screen resolution (width x height):1080 x 2160, Pixel density:423 ppi, Display size:5.7 inch, OS:Android, Chipset:Qualcomm SDM660 Snapdragon 660, CPU specs:2.2GHz+1.8GHz×8(OctaCore), RAM size:6GB, Storage size:128GB, Battery capacity:4000 mAh, Rear-camera resolution:12 MP, Front-camera resolution:8 MP