O2 XDA Serra vs Spice Stellar 439 (Mi-439)

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Stellar 439 (Mi-439): 51.2 g lighter

    XDA Serra:
    165 g
    Stellar 439 (Mi-439):
    113.8 g
  • Width

    XDA Serra: 12 mm narrower

    XDA Serra:
    51 mm
    Stellar 439 (Mi-439):
    63 mm
  • Screen diagonal

    XDA Serra: 1.2 in smaller diagonal

    XDA Serra:
    2.8 in
    Stellar 439 (Mi-439):
    4 in
  • Chipset

    XDA Serra:
    Qualcomm MSM7201A
    Stellar 439 (Mi-439):
    Mediatek MT6572M (28 nm)
  • Depth

    Stellar 439 (Mi-439): 8.1 mm thinner

    XDA Serra:
    18.1 mm
    Stellar 439 (Mi-439):
    10 mm
  • Height

    XDA Serra: 23 mm shorter

    XDA Serra:
    102 mm
    Stellar 439 (Mi-439):
    125 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. XDA Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +8.1 mm versus Stellar 439 (Mi-439)
  2. 2. Stellar 439 (Mi-439)

    Height:
    125 mm +23 mm versus XDA Serra
    Width:
    63 mm +12 mm versus XDA Serra
    Depth:
    10 mm

Weight

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

  1. 1. XDA Serra

    165 g

    +51.2 g versus Stellar 439 (Mi-439)

  2. 2. Stellar 439 (Mi-439)

    113.8 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. XDA Serra

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Stellar 439 (Mi-439)

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Stellar 439 (Mi-439) has approximately 87.6% more rectangular screen area than XDA Serra.

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.

XDA Serra: Original memory entry

288 MB RAM · 512 MB ROM

Stellar 439 (Mi-439): Original memory entry

4 GB · 512 MB RAM

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 Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. Stellar 439 (Mi-439)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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 Serra

    1340 mAh

  2. 2. Stellar 439 (Mi-439)

    1400 mAh

    +60 mAh versus XDA Serra

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 Serra2. Stellar 439 (Mi-439)

Everyday essentials
Everyday essentials — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Dimensions (HxWxD)
  • 102 Х 51 Х 18.1 mm
  • 125 Х 63 Х 10 mm
Weight
  • 165 g
  • 113.8 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 4" inch
Screen resolution
  • 480 x 640 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 288 MB RAM
  • 512 MB ROM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1340 mAh
  • Removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM7201A
  • Mediatek MT6572M (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 256K
Screen area
  • 24.3 cm2
  • 45.5 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 46.7%
  • 57.8%
PPI /points per inch/
  • 286 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • 720p@25fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • VGA videocall camera
  • 1.3 MP
Performance
Performance — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Processor CPU
  • 528 MHz ARM 11
  • Dual-core 1.0 GHz Cortex-A7
Graphics processor GPU
  • Adreno 130
  • Mali-400
General specs
General specs — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Release date
  • 2008
  • July
  • 2014
  • August
Colors
  • Black
  • Brown
  • Silver
Battery life
  • Stand by time- Up to 406 h Talking time- Up to 8 h
  • Stand by time- Up to 58 h Talking time- Up to 5 h 30 min Music play - Up to 15 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Class 12
Edge
  • Class 10
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 3.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.85 W/kg (head)
Music and Audio
Music and Audio — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Serra, Stellar 439 (Mi-439).
SpecificationXDA SerraStellar 439 (Mi-439)
Dop
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input
  • Sensors Accelerometer