LG K20 plus vs Samsung i637 Jack

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

    i637 Jack: 37.9 g lighter

    K20 plus:
    140 g
    i637 Jack:
    102.1 g
  • Width

    i637 Jack: 14.2 mm narrower

    K20 plus:
    75.2 mm
    i637 Jack:
    61 mm
  • Screen diagonal

    i637 Jack: 2.9 in smaller diagonal

    K20 plus:
    5.3 in
    i637 Jack:
    2.4 in
  • Depth

    K20 plus: 4.8 mm thinner

    K20 plus:
    7.9 mm
    i637 Jack:
    12.7 mm
  • Height

    i637 Jack: 31.6 mm shorter

    K20 plus:
    148.6 mm
    i637 Jack:
    117 mm
  • Release year

    K20 plus:
    2016
    i637 Jack:
    2009

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. K20 plus

    Height:
    148.6 mm +31.6 mm versus i637 Jack
    Width:
    75.2 mm +14.2 mm versus i637 Jack
    Depth:
    7.9 mm
  2. 2. i637 Jack

    Height:
    117 mm
    Width:
    61 mm
    Depth:
    12.7 mm +4.8 mm versus K20 plus

Weight

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

  1. 1. K20 plus

    140 g

    +37.9 g versus i637 Jack

  2. 2. i637 Jack

    102.1 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. K20 plus

    Screen diagonal:
    5.3 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    77.4 cm²
  2. 2. i637 Jack

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²

K20 plus has approximately 334.1% more rectangular screen area than i637 Jack.

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.

K20 plus: Original memory entry

16 GB(VS501) /32 GB · 2 GB RAM

i637 Jack: Original memory entry

256 MB RAM · 256 MB ROM

Practical features

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

1. K20 plus

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

2. i637 Jack

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

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. K20 plus

    2700 mAh

    +1220 mAh versus i637 Jack

  2. 2. i637 Jack

    1480 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. K20 plus2. i637 Jack

Everyday essentials
Everyday essentials — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Dimensions (HxWxD)
  • 148.6 Х 75.2 Х 7.9 mm
  • 117 Х 61 Х 12.7 mm
Weight
  • 140 g
  • 102.1 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.3" inch
  • 2.4" inch
Screen resolution
  • 720 x 1280 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB(VS501) /32 GB
  • 2 GB RAM
  • 256 MB RAM
  • 256 MB ROM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2700 mAh
  • Removable Li-Ion
  • 1480 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
Chipset
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 77.4 cm2
  • 17.8 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 69.3%
  • 25.0%
PPI /points per inch/
  • 277 PPI
  • 167 PPI
Screen protection
  • Corning Gorilla Glass 3 (T-Mobile)
Unknown
Camera and Video
Camera and Video — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Rear camera, main
  • 13 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • 1/3''
  • 1.12µm
  • AF
  • 3.15 MP
Functions
  • LED flash
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0 MP,
Specifications
  • 5 MP
  • f/2.4
  • 1/5''
  • 1.12µm
Unknown
Performance

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

Performance — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Processor CPU
  • Quad-core 1.4 GHz Cortex-A53
  • 528 MHz
Graphics processor GPU
  • Adreno 308
Unknown
GeekBench 4 Single Core *
  • 595
Unknown
GeekBench 4 Multi-Core *
  • 1607
Unknown
GeekBench 4 RenderScript *
  • 1079
Unknown
General specs
General specs — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Release date
  • 2016
  • December
  • 2009
  • May
Colors
  • Black
Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 31 h
  • Stand by time- Up to 288 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
SIM card
  • Nano-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 - Verizon -3G - HSDPA 850 / 1700(AWS) / 1900 - T-Mobile & MetroPCS CDMA2000 1xEV-DO - Verizon HSDPA 850 / 900 / 1900 / 2100 - Verizon -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 12(700) - T-Mobile & MetroPCS LTE band 2(1900)
  • 13(700) - Verizon
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • EV-DO Rev.A 3.1 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • S-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Radio
  • No
  • No
Other features
Other features — specifications for K20 plus, i637 Jack.
SpecificationK20 plusi637 Jack
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - For T-Mobile & MetroPCS; K20 V VS501 (Verizon)
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T