Lenovo K9 vs Samsung Galaxy A21

Lenovo K9

Samsung Galaxy A21

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100 - USA; CDMA2000 1xEV-DO
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - USA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, Cat6, 300 Mbps download, 51 Mbps upload

LTE, Cat4, 151 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal

Glass front, plastic back, plastic frame
SIM

Hybrid Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Height

153.8 mm

167.8 mm
Width

72.9 mm

76.7 mm
Thickness

8 mm

8.1 mm
Weight

155 g

193 g
Colors

Black, Blue

Black

Main camera
Camera type

Dual

Quad
Main camera

13 MP, f/2.2 , 1/3" , 1.12 µm

16 MP, f/1.8 , 1/3.06" , 1.0 µm
5 MP, f/2.4 , 1.12 µm

8 MP, f/2.2 , 1.12 µm, 1/4.0"
2 MP, f/2.4
2 MP, f/2.4
Primary camera resolution

4160 x 3120 pixels

4608 x 3456 pixels
Primary camera video

1080p@30/60fps

1080p@30fps
Primary camera flash

dual-LED flash

LED flash
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode