BlackBerry Key2 vs Yezz Classic C23A

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

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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

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42.2 Mbps

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5.76 Mbps

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

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Yes

2018-6

2015-11

2018-6

2016-2

Aluminum frame (7000 series), plastic back

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

Dual SIM (Mini-SIM)

151.4 mm

112 mm

71.8 mm

48.5 mm

8.5 mm

12.6 mm

168 g

81 g

QWERTY

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Black, Silver

Black, Blue, Fushsia, Gold, Green, Red, Silver, White

IPS LCD capacitive touchscreen

TFT

4.5 inches

1.8 inches

1080 x 1620 pixels

128 x 160 pixels

434 ppi

114 ppi

16777216

262144

Corning Gorilla Glass 3

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Yes

-

Octa-core

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Quad-core 2.2 GHz Kryo 260

quad-core 1.8 GHz Kryo 260

Qualcomm SDM660 Snapdragon 660

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Adreno 512

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6 GB

4 MB

64, 128 GB

4 MB

256 GB

8 GB

Android 8.1 (Oreo)

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Dual

-

12 MP, f/1.8 , 1/2.3" , 1.55 µm

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VGA

12 MP, f/2.6 , 1.55 µm

4048 x 3036 pixels

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2160p@30fps, 1080p@30fps

video

phase detection autofocus

-

dual-LED dual-tone flash

-

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

No

-

No

8 MP, f/2.0 , 1.12 µm

3264 x 2448 pixels

-

1080p

-

Vibration; MP3, WAV ringtones

Vibration, MP3, WAV

Yes

-

FM radio

Stereo FM radio

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

Yes

-

Yes

-

Yes

-

Type-C 1.0 reversible connector

microUSB 2.0

Yes

-

v5.0

v2.1

Yes

-

Yes

-

Yes

-

Yes

-

Yes, with A-GPS

No

Yes

-

BDS2

-

MMS

-

Email

-

IM

-

Push Email

-

BBM

-

-

WAP 2.0

-

No

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

-

HTML5

-

3500 mAh

600 mAh

Non-removable

Removable

Quick Charge 3.0(50% in 36 min)

-

-

4 h

-

200 h