BlackBerry Key2 vs ZTE nubia Z20

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 19(800), 20(800), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) - EU, Africa, AU; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 20(800), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) - Canada, US, LATAM; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 19(800), 20(800), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) - ME, APAC, India; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - China

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)

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3.1 Mbps download, 1.8 Mbps upload

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LTE Cat 18, 1.2 Gbps download, 221 Mbps upload

LTE-A, (3CA) Cat11, 600 Mbps download, 75 Mbps upload

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2018-6

2019-8

2018-6

2019-8

Aluminum frame (7000 series), plastic back

Aluminium alloy, glass

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) - BBF100-6 only

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

151.4 mm

158.6 mm

71.8 mm

75.2 mm

8.5 mm

9.2 mm

168 g

186 g

QWERTY

-

Black, Silver

Black, Blue, Red

IPS LCD capacitive touchscreen

AMOLED

4.5 inches

6.42 inches

1080 x 1620 pixels

1080 x 2340 pixels

434 ppi

401 ppi

Corning Gorilla Glass 3

Scratch resistant, Corning Gorilla Glass

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Always-on display, DC dimming, HDR10

-

AMOLED

-

720 x 1520 pixels

-

5.1 inches

Quad-core 2.2 GHz Kryo 260

Single-core 2.96 GHz Kryo 485

quad-core 1.8 GHz Kryo 260

Triple-core 2.42 GHz Kryo 485

Quad-core 1.8 GHz Kryo 485

Qualcomm SDM660 Snapdragon 660

Qualcomm SDM855 Snapdragon 855+

Adreno 512

Adreno 640

6 GB

6, 8 GB

64, 128 GB

128, 512 GB

microSD

No

256 GB

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Android 8.1 (Oreo)

Android 9.0 Pie; nubia 7.0

Dual

Triple

12 MP, f/1.8 , 1/2.3" , 1.55 µm

48 MP, f/1.7 , 1/2" , 0.8 µm, 26 mm, 3x optical zoom

12 MP, f/2.6 , 1.55 µm

8 MP

16 MP, 12 mm

4048 x 3036 pixels

8000 x 6000 pixels

2160p@30fps, 1080p@30fps

4320@15fps, 2160p@30/60fps, 1080p@30/60fps, 720p@1920fps

phase detection autofocus

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Geo-tagging, HDR, face detection, panorama, touch focus

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

8 MP, f/2.0 , 1.12 µm

3264 x 2448 pixels

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1080p

-

Yes

No

Vibration; MP3, WAV ringtones

-

-

No

FM radio

-

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Yes

-

-

Yes

Yes

-

-

Yes

-

Yes

BDS2

-

SMS

-

MMS

-

Email

-

IM

-

Push Email

-

BBM

-

Fingerprint (front-mounted), accelerometer, compass, gyro, proximity

Accelerometer, compass, fingerprint, gyroscope, light, proximity

Li-Ion

Li-Po

3500 mAh

4000 mAh

Quick Charge 3.0(50% in 36 min)

Yes

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500 USD