BlackBerry Keyone vs Celkon A355

Compare recorded specifications, size and practical differences.

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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.

  • Weight

    A355: 82.5 g lighter

    Keyone:
    180 g
    A355:
    97.5 g
  • Width

    A355: 9.1 mm narrower

    Keyone:
    72.4 mm
    A355:
    63.3 mm
  • Screen diagonal

    A355: 1 in smaller diagonal

    Keyone:
    4.5 in
    A355:
    3.5 in
  • Chipset

    Keyone:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
    A355:
    Spreadtrum 7715
  • Depth

    Keyone: 0.8 mm thinner

    Keyone:
    9.4 mm
    A355:
    10.2 mm
  • Height

    A355: 33.8 mm shorter

    Keyone:
    149.1 mm
    A355:
    115.3 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.

  1. 1. Keyone

    Height:
    149.1 mm +33.8 mm versus A355
    Width:
    72.4 mm +9.1 mm versus A355
    Depth:
    9.4 mm
  2. 2. A355

    Height:
    115.3 mm
    Width:
    63.3 mm
    Depth:
    10.2 mm +0.8 mm versus Keyone

Weight

Bars start at zero and share a scale within this chart.

  1. 1. Keyone

    180 g

    +82.5 g versus A355

  2. 2. A355

    97.5 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. Keyone

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    60.3 cm²
  2. 2. A355

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Keyone has approximately 65.3% more rectangular screen area than A355.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Keyone: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM

A355: Original memory entry

512 MB · 256 MB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Keyone

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

2. A355

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. Keyone

    3500 mAh

    +2300 mAh versus A355

  2. 2. A355

    1200 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Keyone2. A355

Everyday essentials
Everyday essentials — specifications for Keyone, A355.
SpecificationKeyoneA355
Dimensions (HxWxD)
  • 149.1 Х 72.4 Х 9.4 mm
  • 115.3 Х 63.3 Х 10.2 mm
Weight
  • 180 g
  • 97.5 g
Technology
  • IPS LCD
Unknown
Screen size
  • 4.5" inch
  • 3.5" inch
Screen resolution
  • 1080 x 1620 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1200 mAh
  • Li-Ion
Operating system OS
  • Android 7.1 (Nougat)
  • upgradable to Android 8.0 (Oreo)
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Spreadtrum 7715
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Keyone, A355.
SpecificationKeyoneA355
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 60.0 cm2
  • 36.5 cm2
Screen format
  • 3:2 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 55.6%
  • 50.0%
PPI /points per inch/
  • 434 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 4
Unknown
Camera and Video
Camera and Video — specifications for Keyone, A355.
SpecificationKeyoneA355
Rear camera, main
  • 12 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 12 MP
  • f/2.0
  • 1/2.3''
  • 1.55µm
  • PDAF
  • 2 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • Dual-LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 1/4''
  • 1.12µm
  • VGA
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Keyone, A355.
SpecificationKeyoneA355
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • 1.0 GHz
Graphics processor GPU
  • Adreno 506
  • Mali-400
Antutu 7 score *
  • 61392
Unknown
General specs
General specs — specifications for Keyone, A355.
SpecificationKeyoneA355
Release date
  • 2017
  • February
  • 2015
  • May
Colors
  • Black/Silver
  • Black
  • Bronze
  • Light Blue
  • Dart Blue
  • Red
  • Yellow
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 290 EUR
Unknown
Body build
  • aluminum frame
  • plastic back
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Keyone, A355.
SpecificationKeyoneA355
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by) - BBB100-4 only
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (BBB100-4 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)
  • 13(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat9 450/50 Mbps
  • HSPA
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
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS2
  • Yes
USB
  • 3.1
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB
Bluetooth
  • 4.2
  • A2DP
  • LE
  • EDR
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.49 W/kg (head) 0.84 W/kg (body)
Music and Audio
Music and Audio — specifications for Keyone, A355.
SpecificationKeyoneA355
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Keyone, A355.
SpecificationKeyoneA355
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: BBB100-1 (Canada
  • LATAM
  • APAC
  • US V1); BBB100-2 (EMEA); BBB100-3 (US V2); BBB100-4 (India); BBB100-6 (Japan)Also known as BlackBerry Mercury
  • Sensors Accelerometer