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BLU C4 vs TECNO Spark CM

Compare recorded specifications, size and practical differences.

BLU C4

BLU C4

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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.

  • WeightC4: 54 g lighterC4: 118 g · Spark CM: 172 g
  • WidthC4: 7.5 mm narrowerC4: 64.2 mm · Spark CM: 71.7 mm
  • Screen diagonalC4: 1.7 in smaller diagonalC4: 4 in · Spark CM: 5.7 in
  • DepthSpark CM: 5.3 mm thinnerSpark CM: 5.6 mm · C4: 10.9 mm
  • HeightC4: 27.9 mm shorterC4: 124.3 mm · Spark CM: 152.2 mm
  • Release year2018 / 2017C4: 2018 · Spark CM: 2017

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
C4: 124.3 × 64.2 mm 1 Spark CM: 152.2 × 71.7 mm 2
Side
C4: 124.3 × 10.9 mm 1 Spark CM: 152.2 × 5.6 mm 2
  1. 1. C4
    Height
    124.3 mm
    Width
    64.2 mm
    Depth
    10.9 mm
    Weight
    118 g
  2. 2. Spark CM
    Height
    152.2 mm
    Width
    71.7 mm
    Depth
    5.6 mm
    Weight
    172 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
SpecificationC4Spark CM
Dimensions (HxWxD)
  • 124.3 Х 64.2 Х 10.9 mm
  • 152.2 Х 71.7 Х 5.6 mm
Weight
  • 118 g
  • 172 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4" inch
  • 5.7" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1440 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 32 GB
BatteryCapacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Li-Po
  • 3050 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 7.0 (Nougat)
Chipset Unknown
  • Mediatek MT6737
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationC4Spark CM
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 83.8 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 57.1%
  • 76.8%
PPI /points per inch/
  • 233 PPI
  • 282 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video
SpecificationC4Spark CM
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • f/2.0
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • 8 MP
Performance
Performance
SpecificationC4Spark CM
Processor CPU
  • Quad-core 1.3 GHz
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720MP2
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 21722
Unknown
General specs
General specs
SpecificationC4Spark CM
Release date
  • 2018
  • August
  • 2017
  • December
Colors
  • Black
  • Gold
  • Blue
  • Midnight Black
  • Champagne Gold
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 50 USD
Unknown
Battery life
  • Stand by time- Up to 400 h (2G) / Up to 450 h (3G) Talking time- Up to 18 h (2G) / Up to 13 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity
SpecificationC4Spark CM
SIM card
  • Dual SIM (Micro-SIM)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio
SpecificationC4Spark CM
Radio
  • FM radio
  • FM radio
Other features
Other features
SpecificationC4Spark CM
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity