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BlackBerry Key2 vs Celkon A40

Compare recorded specifications, size and practical differences.

Celkon A40

Celkon A40

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • WeightA40: 41.5 g lighterA40: 126.5 g · Key2: 168 g
  • WidthA40: 7.8 mm narrowerA40: 64 mm · Key2: 71.8 mm
  • Screen diagonalA40: 0.5 in smaller diagonalA40: 4 in · Key2: 4.5 in
  • Rear camera layoutDual / SingleKey2: Dual · A40: Single
  • DepthKey2: 2.3 mm thinnerKey2: 8.5 mm · A40: 10.8 mm
  • HeightA40: 25.2 mm shorterA40: 126.2 mm · Key2: 151.4 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

Front
Key2: 151.4 × 71.8 mm 1 A40: 126.2 × 64 mm 2
Side
Key2: 151.4 × 8.5 mm 1 A40: 126.2 × 10.8 mm 2
  1. 1. Key2
    Height
    151.4 mm
    Width
    71.8 mm
    Depth
    8.5 mm
    Weight
    168 g
  2. 2. A40
    Height
    126.2 mm
    Width
    64 mm
    Depth
    10.8 mm
    Weight
    126.5 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials
Everyday essentials
SpecificationKey2A40
Dimensions (HxWxD)
  • 151.4 Х 71.8 Х 8.5 mm
  • 126.2 Х 64 Х 10.8 mm
Weight
  • 168 g
  • 126.5 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 1080 x 1620 px
  • 480 x 800 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 32 GB (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1500 mAh
  • Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationKey2A40
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 60.0 cm2
  • 45.5 cm2
Screen format
  • 3:2 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 55.2%
  • 56.4%
PPI /points per inch/
  • 434 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video
SpecificationKey2A40
Rear camera, main
  • 12 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.3''
  • 1.28µm
  • dual pixel PDAF -12 MP
  • f/2.6
  • 1/3.4''
  • 1.0µm
  • PDAF
  • 5 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
  • VGA
Performance
Performance
SpecificationKey2A40
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Dual-core 1.3 GHz
Graphics processor GPU
  • Adreno 512
Unknown
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 104256
Unknown
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 1628
Unknown
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 5894
Unknown
General specs
General specs
SpecificationKey2A40
Release date
  • 2018
  • June
  • 2014
  • January
Colors
  • Black
  • Silver
  • White
  • Yellow
  • Blue
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 500 EUR
Unknown
Body build
  • aluminum frame (7000 series)
  • plastic back
Unknown
Communication and Connectivity
Communication and Connectivity
SpecificationKey2A40
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by) - BBF100-6 only
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (BBF100-6 model only) -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE 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 (BBF100-1) LTE band 1(2100)
  • 14(700)
  • 29(700)
  • 30(2300)
  • 41(2500)
  • 66(1700/2100) - Canada
  • US
  • LATAM (BBF100-2) LTE band 1(2100)
  • 41(2500) - ME
  • APAC
  • India (BBF100-6) LTE band 1(2100)
  • 41(2500) - China (BBF100-4)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat11 600/75 Mbps
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS2
  • Yes
USB
  • 3.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • EDR
  • 2.0
Harmful irradiation
  • SAR EU - 0.72 W/kg (head) 1.68 W/kg (body)
Unknown
Music and Audio
Music and Audio
SpecificationKey2A40
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features
SpecificationKey2A40
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 50% in 36 min (Quick Charge 3.0) - Capacitive touch 4-row BlackBerry keyboard - Versions: BBF100-1 (EU
  • Africa
  • AU); BBF100-2 (Canada
  • US
  • LATAM); BBF100-6 (ME
  • APAC
  • India); BBF100-4 (China) Also known as BlackBerry Athena
  • Sensors Accelerometer
  • proximity

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