O2 XDA Zest vs Xolo Black

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

    XDA Zest: 16.1 mm narrower

    XDA Zest:
    60.5 mm
    Black:
    76.6 mm
  • Screen diagonal

    XDA Zest: 2.7 in smaller diagonal

    XDA Zest:
    2.8 in
    Black:
    5.5 in
  • Rear camera layout

    XDA Zest:
    Single
    Black:
    Dual
  • Depth

    Black: 9.2 mm thinner

    XDA Zest:
    16.5 mm
    Black:
    7.3 mm
  • Height

    XDA Zest: 53.5 mm shorter

    XDA Zest:
    102 mm
    Black:
    155.5 mm
  • Release year

    XDA Zest:
    2008
    Black:
    2015

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. XDA Zest

    Height:
    102 mm
    Width:
    60.5 mm
    Depth:
    16.5 mm +9.2 mm versus Black
    Weight:
    102.5 g
  2. 2. Black

    Height:
    155.5 mm +53.5 mm versus XDA Zest
    Width:
    76.6 mm +16.1 mm versus XDA Zest
    Depth:
    7.3 mm
    Weight:
    Unknown

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. XDA Zest

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

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

Black has approximately 243.5% more rectangular screen area than XDA Zest.

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 XDA Zest, Black, compared at the same storage capacity.
StorageXDA ZestBlack
16 GB Unknown 2 GB RAM
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. XDA Zest

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

2. Black

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (uses SIM 2 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. XDA Zest

    1300 mAh

  2. 2. Black

    3200 mAh

    +1900 mAh versus XDA Zest

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. XDA Zest2. Black

Everyday essentials
Everyday essentials — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Dimensions (HxWxD)
  • 102 Х 60.5 Х 16.5 mm
  • 155.5 Х 76.6 Х 7.3 mm
Weight
  • 102.5 g
  • 0 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 5.5" inch
Screen resolution
  • 480 x 640 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 32 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 3200 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 5.0 (Lollipop); HIVE Atlas UI
Chipset Unknown
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 82.6 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 39.3%
  • 69.3%
PPI /points per inch/
  • 286 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 3.15 MP
  • AF
  • 13 MP
  • AF -2 MP
  • depth sensor
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA videocall camera
  • 5 MP
Performance

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

Performance — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Processor CPU
  • 624MHz Marvell TavorP
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Adreno 405
Antutu 7 score * Unknown
  • 30156
General specs
General specs — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Release date
  • 2008
  • October
  • 2015
  • July
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 180 EUR
Battery life
  • Stand by time- Up to 260 h Talking time- Up to 5 h
  • Stand by time- Up to 736 h (2G) / Up to 699 h (3G) Talking time- Up to 36 h (2G) / Up to 24 h (3G)
Body build Unknown
  • Front/back glass (Gorilla Glass 3)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE 1800 TD-LTE 2300
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 42.2/11.5 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
  • SiRF Star III chipset
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB 1.1
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.13 W/kg (head) 0.27 W/kg (body)
Music and Audio
Music and Audio — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Radio
  • No
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Zest, Black.
SpecificationXDA ZestBlack
Dop
  • SiRF star III chipset -Pocket Office -Voice memo -MP3 player -Predictive text input
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For India