Amoi E850 vs O2 XDA Zest

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

    XDA Zest: 5.5 g lighter

    E850:
    108 g
    XDA Zest:
    102.5 g
  • Width

    E850: 6.5 mm narrower

    E850:
    54 mm
    XDA Zest:
    60.5 mm
  • Screen diagonal

    E850: 0.4 in smaller diagonal

    E850:
    2.4 in
    XDA Zest:
    2.8 in
  • Depth

    XDA Zest: 3.5 mm thinner

    E850:
    20 mm
    XDA Zest:
    16.5 mm
  • Release year

    E850:
    2006
    XDA Zest:
    2008

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. E850

    Height:
    102 mm
    Width:
    54 mm
    Depth:
    20 mm +3.5 mm versus XDA Zest
  2. 2. XDA Zest

    Height:
    102 mm
    Width:
    60.5 mm +6.5 mm versus E850
    Depth:
    16.5 mm

Weight

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

  1. 1. E850

    108 g

    +5.5 g versus XDA Zest

  2. 2. XDA Zest

    102.5 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. E850

    E850: Screen geometry unavailable or conflicting.

  2. 2. XDA Zest

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

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.

E850: Original memory entry

64 MB RAM · 128 MB ROM

XDA Zest: Original memory entry

128 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. E850

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (dedicated slot)

2. XDA Zest

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. E850

    1100 mAh

  2. 2. XDA Zest

    1300 mAh

    +200 mAh versus E850

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. E8502. XDA Zest

Everyday essentials
Everyday essentials — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Dimensions (HxWxD)
  • 102 Х 54 Х 20 mm
  • 102 Х 60.5 Х 16.5 mm
Weight
  • 108 g
  • 102.5 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 2.8" inch
Screen resolution
  • 204 x 320 px
  • 480 x 640 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
  • 128 MB RAM
  • 256 MB ROM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 for PocketPC Phone Edition
  • Microsoft Windows Mobile 6.1 Professional
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • No
Display
Display — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • Super AMOLED
  • 65K
Screen area
  • 16.8 cm2
  • 24.3 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 130.6 g
  • 39.3%
PPI /points per inch/
  • 0 PPI
  • 286 PPI
Camera and Video
Camera and Video — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Rear camera, main
  • 2 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 2 MP
  • 3.15 MP
  • AF
Functions
  • Dual-LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications
  • Super AMOLED
  • VGA videocall camera
Performance
Performance — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Processor CPU
  • Intel XScale PXA 272 312 MHz
  • 624MHz Marvell TavorP
General specs
General specs — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Release date
  • 2006
  • Q2
  • 2008
  • October
Colors
  • Black
  • Black
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
  • Stand by time- Up to 260 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • Super AMOLED
  • HSPA 3.6/0.384 Mbps
GPRS
  • Class 10
  • Class 10
Edge
  • panorama
  • Class 10
Wi-Fi
  • panorama
  • Wi-Fi 802.11 b/g
GPS
  • panorama
  • Yes
  • with A-GPS
  • SiRF Star III chipset
USB
  • HSPA 21.1/5.76 Mbps
  • miniUSB 1.1
Bluetooth
  • Quad-core 1.25 GHz Cortex-A53
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Radio
  • panorama
  • No
Others
  • Handwriting recognition
  • Handwriting recognition
Other features
Other features — specifications for E850, XDA Zest.
SpecificationE850XDA Zest
Dop
  • Super AMOLED
  • Infrared port - Pocket Office -Media player -PC Sync -Voice memo -Organizer -World Time
  • SiRF star III chipset -Pocket Office -Voice memo -MP3 player -Predictive text input