Samsung i637 Jack vs Yezz Max 1 Plus

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.

  • Width

    i637 Jack: 9.9 mm narrower

    i637 Jack:
    61 mm
    Max 1 Plus:
    70.9 mm
  • Screen diagonal

    i637 Jack: 3.05 in smaller diagonal

    i637 Jack:
    2.4 in
    Max 1 Plus:
    5.45 in
  • Rear camera layout

    i637 Jack:
    Single
    Max 1 Plus:
    Dual
  • Depth

    Max 1 Plus: 3.8 mm thinner

    i637 Jack:
    12.7 mm
    Max 1 Plus:
    8.9 mm
  • Height

    i637 Jack: 31.7 mm shorter

    i637 Jack:
    117 mm
    Max 1 Plus:
    148.7 mm
  • Release year

    i637 Jack:
    2009
    Max 1 Plus:
    2019

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. i637 Jack

    Height:
    117 mm
    Width:
    61 mm
    Depth:
    12.7 mm +3.8 mm versus Max 1 Plus
  2. 2. Max 1 Plus

    Height:
    148.7 mm +31.7 mm versus i637 Jack
    Width:
    70.9 mm +9.9 mm versus i637 Jack
    Depth:
    8.9 mm

Weight

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

  1. 1. i637 Jack

    102.1 g

  2. 2. Max 1 Plus

    104.9 g

    +2.8 g versus i637 Jack

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. i637 Jack

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²
  2. 2. Max 1 Plus

    Screen diagonal:
    5.45 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    76.7 cm²

Max 1 Plus has approximately 329.7% 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.

Recorded RAM for i637 Jack, Max 1 Plus, compared at the same storage capacity.
Storagei637 JackMax 1 Plus
16 GB Unknown 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. i637 Jack

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

2. Max 1 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. i637 Jack

    1480 mAh

  2. 2. Max 1 Plus

    2000 mAh

    +520 mAh versus i637 Jack

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. i637 Jack2. Max 1 Plus

Everyday essentials
Everyday essentials — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Dimensions (HxWxD)
  • 117 Х 61 Х 12.7 mm
  • 148.7 Х 70.9 Х 8.9 mm
Weight
  • 102.1 g
  • 104.9 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 5.45" inch
Screen resolution
  • 320 x 240 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB RAM
  • 256 MB ROM
  • 16GB 2GB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
  • Android 9.1 Pie (Go edition)
Chipset Unknown
  • Unisoc SC9832E (28nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 17.8 cm2
  • 76.7 cm2
Screen format
  • 4:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 25.0%
  • 72.7%
PPI /points per inch/
  • 167 PPI
  • 295 PPI
Screen protection Unknown
  • AGC glass
Camera and Video
Camera and Video — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Dual
Camera specs
  • 3.15 MP
  • 8 MP 0.3 MP
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
Performance
Performance — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Processor CPU
  • 528 MHz
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T820 MP1
General specs
General specs — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Release date
  • 2009
  • May
  • 2019
  • August
Colors Unknown
  • Black
  • Gun Metal
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 90 USD
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 7 h
  • Stand by time- Up to 280 h Talking time- Up to 9 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Radio
  • No
  • Stereo FM radio
Other features
Other features — specifications for i637 Jack, Max 1 Plus.
Specificationi637 JackMax 1 Plus
Dop
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T
  • Sensors Accelerometer