i-mate JAMin vs vivo Y28

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

    JAMin: 6 g lighter

    JAMin:
    150 g
    Y28:
    156 g
  • Width

    JAMin: 10.6 mm narrower

    JAMin:
    58 mm
    Y28:
    68.6 mm
  • Screen diagonal

    JAMin: 1.9 in smaller diagonal

    JAMin:
    2.8 in
    Y28:
    4.7 in
  • Chipset

    JAMin:
    TI OMAP 850
    Y28:
    Mediatek MT6582 (28 nm)
  • Depth

    Y28: 8.4 mm thinner

    JAMin:
    18.2 mm
    Y28:
    9.8 mm
  • Height

    JAMin: 29.4 mm shorter

    JAMin:
    108 mm
    Y28:
    137.4 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. JAMin

    Height:
    108 mm
    Width:
    58 mm
    Depth:
    18.2 mm +8.4 mm versus Y28
  2. 2. Y28

    Height:
    137.4 mm +29.4 mm versus JAMin
    Width:
    68.6 mm +10.6 mm versus JAMin
    Depth:
    9.8 mm

Weight

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

  1. 1. JAMin

    150 g

  2. 2. Y28

    156 g

    +6 g versus JAMin

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. JAMin

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Y28

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:10
    Approximate rectangular screen area:
    64.1 cm²

Y28 has approximately 163.8% more rectangular screen area than JAMin.

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 JAMin, Y28, compared at the same storage capacity.
StorageJAMinY28
8 GB Unknown 1 GB RAM
JAMin: Original memory entry

64 MB RAM · 128 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. JAMin

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SD/MMC · up to 2 GB

2. Y28

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

    1200 mAh

  2. 2. Y28

    2100 mAh

    +900 mAh versus JAMin

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. JAMin2. Y28

Everyday essentials
Everyday essentials — specifications for JAMin, Y28.
SpecificationJAMinY28
Dimensions (HxWxD)
  • 108 Х 58 Х 18.2 mm
  • 137.4 Х 68.6 Х 9.8 mm
Weight
  • 150 g
  • 156 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 4.7" inch
Screen resolution
  • 240 x 320 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 8 GB
  • 1 GB RAM
Memory card support
  • SD/MMC
  • up to 2 GB
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Po
  • 2100 mAh
  • Removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Android 4.2.2 (Jelly Bean)
Chipset
  • TI OMAP 850
  • Mediatek MT6582 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for JAMin, Y28.
SpecificationJAMinY28
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 64.2 cm2
Screen format
  • 4:3 (height:width)
  • 16:10 (height:width)
Screen to body ratio
  • 38.8%
  • 68.1%
PPI /points per inch/
  • 143 PPI
  • 216 PPI
Camera and Video
Camera and Video — specifications for JAMin, Y28.
SpecificationJAMinY28
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
  • AF
Functions Unknown
  • LED flash
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
Performance
Performance — specifications for JAMin, Y28.
SpecificationJAMinY28
Processor CPU
  • 200 MHz ARM926EJ-S
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
General specs
General specs — specifications for JAMin, Y28.
SpecificationJAMinY28
Release date
  • 2006
  • Q1
  • 2014
  • December
Colors
  • Stylish black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 220 EUR
  • 100 EUR
Battery life Unknown
  • Stand by time- Up to 430 h (2G) / Up to 430 h (3G) Talking time- Up to 14 h (2G) / Up to 13 h (3G) Music play - Up to 32 h
Communication and Connectivity
Communication and Connectivity — specifications for JAMin, Y28.
SpecificationJAMinY28
SIM card
  • Mini-SIM
  • Micro-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • EDR
Music and Audio
Music and Audio — specifications for JAMin, Y28.
SpecificationJAMinY28
Radio
  • No
  • FM radio
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for JAMin, Y28.
SpecificationJAMinY28
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player - Produced by HTC. Functionally identical to Qtek S200
  • O2 XDA Neo.
  • Sensors Accelerometer
  • proximity
  • compass
  • Infrared port