BLU J4 vs TECNO F2 LTE

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

    J4: 10.5 g lighter

    J4:
    158 g
    F2 LTE:
    168.5 g
  • Width

    J4: 1.7 mm narrower

    J4:
    72.3 mm
    F2 LTE:
    74 mm
  • Screen diagonal

    F2 LTE: 0.5 in smaller diagonal

    J4:
    5.5 in
    F2 LTE:
    5 in
  • Height

    F2 LTE: 7.2 mm shorter

    J4:
    151 mm
    F2 LTE:
    143.8 mm
  • Release year

    J4:
    2019
    F2 LTE:
    2018

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. J4

    Height:
    151 mm +7.2 mm versus F2 LTE
    Width:
    72.3 mm
    Depth:
    10 mm
  2. 2. F2 LTE

    Height:
    143.8 mm
    Width:
    74 mm +1.7 mm versus J4
    Depth:
    9.6 mm

Weight

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

  1. 1. J4

    158 g

  2. 2. F2 LTE

    168.5 g

    +10.5 g versus J4

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. J4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    78.1 cm²
  2. 2. F2 LTE

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

J4 has approximately 13.3% more rectangular screen area than F2 LTE.

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.

Recorded RAM for J4, F2 LTE, compared at the same storage capacity.
StorageJ4F2 LTE
8 GB Not recorded 1 GB RAM
32 GB 1 GB RAM Not recorded

Practical features

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

1. J4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC

2. F2 LTE

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. J4

    2200 mAh

  2. 2. F2 LTE

    2400 mAh

    +200 mAh versus J4

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. J42. F2 LTE

Everyday essentials
Everyday essentials — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 143.8 Х 74 Х 9.6 mm
Weight
  • 158 g
  • 168.5 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 720 x 1440 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSDXC
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 2400 mAh
  • Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 8.1 Oreo (Go edition)
Chipset Unknown
  • Mediatek MT6739WA (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 68.9 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.5%
  • 64.7%
PPI /points per inch/
  • 293 PPI
  • 196 PPI
Camera and Video
Camera and Video — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • 5 MP
Performance

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

Performance — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • PowerVR GE8100
Antutu 7 score * Unknown
  • 29745
General specs
General specs — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Release date
  • 2019
  • October
  • 2018
  • May
Colors
  • Blue
  • Black
  • Brown
  • Champagne Gold
  • Midnight Black
  • City Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
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 900 / 2100 -4G - LTE band 3(1800)
  • 7(2600)
  • 20(800)
Speed
  • HSPA 21.1/5.76 Mbps
  • cat
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for J4, F2 LTE.
SpecificationJ4F2 LTE
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer