Device summary

Samsung

Galaxy M55

Redmi

Note 15

Full specifications

Full specifications
Basic information
Release year20242026
Starting price——
Display size6.7-inch6.8-inch
Dimensions76.5 mm × 163.9 mm × 7.8 mm75.4 mm × 164.0 mm × 7.9 mm
Weight180 g184 g
Front material——
Back material——
Display
Display technologySuper AMOLED PlusAMOLED
Resolution1080 × 24002392 × 1080
Refresh rate120 Hz120 Hz
Peak brightness—3200 nits
Performance
ChipsetQualcomm Snapdragon 7 Gen 1MediaTek Helio G100-Ultra
RAM8 GB6 GB, 8 GB
Storage128 GB128 GB, 256 GB, 512 GB
Expandable storageYesYes
Cameras
Main cameraWide · 50 MP · ƒ/1.8 · OISWide · 108 MP · ƒ/1.76
Ultra-wide cameraUltra Wide · 8 MP · ƒ/2.2—
Macro cameraMacro · 2 MP · ƒ/2.4—
Depth camera—Depth · 2 MP · ƒ/2.4
Front camerasSelfie · 50 MP · ƒ/2.4Front · 20 MP
Battery & charging
Wired charging25 W33 W
Charging standardSuper Fast Charging—
Typical capacity5000 mAh6000 mAh
Connectivity
Cellular5G, LTE, 3G, 2GLTE
Wi‑FiWi-Fi 6Wi-Fi 5
BluetoothBluetooth 5.2Bluetooth 5.3
USBUSB Type-C—
NFCYesYes
Build & durability
Ingress protection—IP64

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Width

    Galaxy M55

    1.1 mm wider · minor difference

  • Weight

    Galaxy M55

    4 g lighter · minor difference

  • Height

    Very similar height

  • Thickness

    Very similar thickness

What these size differences mean

Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.

  • Galaxy M55 is 1.1 mm (1.5% relative to Note 15) wider. Check this difference against the width of your current device and pocket opening.
  • Note 15 is 0.1 mm (0.1% relative to Galaxy M55) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
  • Note 15 is 0.1 mm (1.3% relative to Galaxy M55) thicker. Cases and camera protrusions can change the clearance you need.
  • Galaxy M55 is 4 g lighter. This is the listed device-weight difference, not a measured comfort rating.

Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.

Size in everyday life

Picture it in your front pocket.

Front pocket reference

2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists

Galaxy M55

Note 15

Sources and measurement notes

Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.

Galaxy M55

No source link is recorded for this model yet. Treat its listed figures as unverified.

Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.

Galaxy M55 vs Note 15 Size Comparison

User Experience Summary

Galaxy M55

Strengths

  • Vivid 120Hz Super AMOLED Plus display with punchy colors
  • Dependable all-day battery life with 45W fast-charging support
  • Stereo speakers and under-display fingerprint sensor uncommon at this price

Compromises

  • Camera app is noticeably slow, especially for automatic night-mode shots
  • Battery and camera resolution reduced compared with the previous M54
  • Phone runs warm during extended gaming or camera app use

Note 15

Strengths

  • 6000mAh battery on Helio G100-Ultra
  • IP64 durability upgrade over entry Note 14
  • 6.77-inch 3200-nit AMOLED brightness

Compromises

  • Camera gains feel incremental over Note 14
  • Limited long-term reliability data
  • HyperOS 2 promotional clutter persists

Compare in Sizometry Tool

See both devices at the same scale.