Motorola ROKR E2 vs Samsung Galaxy M31

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

    ROKR E2: 84 g lighter

    ROKR E2:
    107 g
    Galaxy M31:
    191 g
  • Width

    ROKR E2: 25.6 mm narrower

    ROKR E2:
    49.5 mm
    Galaxy M31:
    75.1 mm
  • Screen diagonal

    ROKR E2: 4.4 in smaller diagonal

    ROKR E2:
    2 in
    Galaxy M31:
    6.4 in
  • Rear camera layout

    ROKR E2:
    Single
    Galaxy M31:
    Triple
  • Depth

    Galaxy M31: 9.1 mm thinner

    ROKR E2:
    18 mm
    Galaxy M31:
    8.9 mm
  • Height

    ROKR E2: 53.2 mm shorter

    ROKR E2:
    106 mm
    Galaxy M31:
    159.2 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. ROKR E2

    Height:
    106 mm
    Width:
    49.5 mm
    Depth:
    18 mm +9.1 mm versus Galaxy M31
  2. 2. Galaxy M31

    Height:
    159.2 mm +53.2 mm versus ROKR E2
    Width:
    75.1 mm +25.6 mm versus ROKR E2
    Depth:
    8.9 mm

Weight

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

  1. 1. ROKR E2

    107 g

  2. 2. Galaxy M31

    191 g

    +84 g versus ROKR E2

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. ROKR E2

    Screen diagonal:
    2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    12.4 cm²
  2. 2. Galaxy M31

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²

Galaxy M31 has approximately 711.7% more rectangular screen area than ROKR E2.

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 ROKR E2, Galaxy M31, compared at the same storage capacity.
StorageROKR E2Galaxy M31
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
ROKR E2: Original memory entry

10 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. ROKR E2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details SD · up to 2 GB

2. Galaxy M31

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. ROKR E2

    850 mAh

  2. 2. Galaxy M31

    6000 mAh

    +5150 mAh versus ROKR E2

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. ROKR E22. Galaxy M31

Everyday essentials
Everyday essentials — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Dimensions (HxWxD)
  • 106 Х 49.5 Х 18 mm
  • 159.2 Х 75.1 Х 8.9 mm
Weight
  • 107 g
  • 191 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2" inch
  • 6.4" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 10 MB
  • 64GB 6GB RAM
  • 128GB 6GB RAM
Memory card support
  • SD
  • up to 2 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 850 mAh
  • Removable Li-Ion
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Linux
  • Android 10.0; One UI 2.0
Chipset Unknown
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 12.4 cm2
  • 100.5 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 23.6%
  • 84.1%
PPI /points per inch/
  • 200 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Rear camera, main
  • 1.3 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 1.3 MP
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 32 MP
  • Single
Specifications Unknown
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
Performance

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

Performance — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Processor CPU
  • 32-bit Intel XScale PXA270 312 MHz
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
Antutu 8 score * Unknown
  • 194554
General specs
General specs — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Release date
  • 2006
  • January
  • 2020
  • February 25
Colors
  • Silver
  • Black
  • Ocean Blue
  • Space Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h 30 min
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed Unknown
  • HSPA
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • Class 6
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • miniUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
Music and Audio
Music and Audio — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Radio
  • FM radio
  • FM radio
  • RDS
  • recording
Other features
Other features — specifications for ROKR E2, Galaxy M31.
SpecificationROKR E2Galaxy M31
Dop
  • MP4/MP3 player -iTAP -Voice memo -Voice dial -Organizer -Changeable covers
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS