HTC Primo vs Samsung Galaxy M31

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.

  • Display technology

    OLED versus LCD

    Primo:
    LCD
    Galaxy M31:
    OLED
  • Weight

    Primo: 76 g lighter

    Primo:
    115 g
    Galaxy M31:
    191 g
  • Width

    Primo: 15.4 mm narrower

    Primo:
    59.7 mm
    Galaxy M31:
    75.1 mm
  • Screen diagonal

    Primo: 2.7 in smaller diagonal

    Primo:
    3.7 in
    Galaxy M31:
    6.4 in
  • Chipset

    Primo:
    Qualcomm MSM8255 Snapdragon S2
    Galaxy M31:
    Exynos 9611 (10nm)
  • Rear camera layout

    Primo:
    Single
    Galaxy M31:
    Triple

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. Primo

    Height:
    120.3 mm
    Width:
    59.7 mm
    Depth:
    9.2 mm
  2. 2. Galaxy M31

    Height:
    159.2 mm +38.9 mm versus Primo
    Width:
    75.1 mm +15.4 mm versus Primo
    Depth:
    8.9 mm

Weight

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

  1. 1. Primo

    115 g

  2. 2. Galaxy M31

    191 g

    +76 g versus Primo

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. Primo

    Screen diagonal:
    3.7 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    39 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 158% more rectangular screen area than Primo.

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 Primo, Galaxy M31, compared at the same storage capacity.
StoragePrimoGalaxy M31
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
Primo: Original memory entry

4 GB (1 GB user available) · 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. Primo

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

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. Primo

    1500 mAh

  2. 2. Galaxy M31

    6000 mAh

    +4500 mAh versus Primo

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. Primo2. Galaxy M31

Everyday essentials
Everyday essentials — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Dimensions (HxWxD)
  • 120.3 Х 59.7 Х 9.2 mm
  • 159.2 Х 75.1 Х 8.9 mm
Weight
  • 115 g
  • 191 g
Technology
  • Super LCD2
  • Super AMOLED
Screen size
  • 3.7" inch
  • 6.4" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB (1 GB user available)
  • 512 MB RAM
  • 64GB 6GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Non-removable Li-Ion
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.0.3 (Ice Cream Sandwich)
  • not upgradable to 4.1 (Jelly Bean); Sense UI 4
  • Android 10.0; One UI 2.0
Chipset
  • Qualcomm MSM8255 Snapdragon S2
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 39.0 cm2
  • 100.5 cm2
Screen format
  • 5:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 54.3%
  • 84.1%
PPI /points per inch/
  • 252 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Rear camera, main
  • 5 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 5 MP
  • AF
  • 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
  • 720p
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 32 MP
  • Single
Specifications
  • No
  • 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 Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Processor CPU
  • 1.0 GHz Scorpion
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 205
  • Mali-G72 MP3
Antutu 8 score * Unknown
  • 194554
General specs
General specs — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Release date
  • 2012
  • February. Released 2012
  • April
  • 2020
  • February 25
Colors
  • Black
  • Brown
  • Ocean Blue
  • Space Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 200 EUR
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.87 W/kg (head) 0.77 W/kg (body) SAR EU - 0.87 W/kg (head)
  • 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 Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • RDS
  • recording
Others
  • Beats Audio
Unknown
Other features
Other features — specifications for Primo, Galaxy M31.
SpecificationPrimoGalaxy M31
Dop
  • Sensors Accelerometer
  • proximity - DivX/XviD/MP4/H.264/WMV player -MP3/eAAC+/WMA/WAV player -Document editor -Voice memo/dial -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS