Plain-language reference

Mobile phone glossary

Understand the display, camera, battery, charging, network, storage, protection, and software terms used across MobileBurn reviews and specifications.

How to use this page

A specification term is a clue, not a verdict

Open a term for its plain meaning, then read why it matters in daily use. A label can describe one part of a phone without predicting the full experience. The linked guide or tool gives the next layer of context.

Start with the decision

  1. Find the unfamiliar term.
  2. Read what it measures or describes.
  3. Check the limits before comparing two phones.

AMOLED

AMOLED is a display technology in which each pixel makes its own light. Black pixels can switch off, which produces deep contrast and can save power when much of the screen is dark.

Why AMOLED matters

The label does not guarantee accurate color, high brightness, or low flicker. Panel tuning and brightness control still change comfort and image quality.

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LTPO display

An LTPO display can change its refresh rate across a wider range than a basic fixed-rate screen. A phone may refresh quickly during motion and slow down while showing a still image.

Why LTPO display matters

A lower refresh rate can reduce display power, but the real saving depends on software, brightness, content, and how often the panel can enter that lower state.

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Refresh rate

Refresh rate is how often a screen can update its image each second. A 120Hz panel can draw up to 120 new frames per second, while a 60Hz panel can draw up to 60.

Why Refresh rate matters

Higher refresh can make scrolling and animation look smoother. It does not make every video or game run at that rate, and it can use more power.

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Megapixel

A megapixel is one million sampled picture points in an image. The number describes possible output resolution, not the complete quality of a camera.

Why Megapixel matters

Lens quality, sensor size, focus, exposure, stabilization, processing, motion, and light can matter more than the advertised pixel count.

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Optical zoom

Optical zoom on a phone uses lens and sensor hardware to capture a narrower field of view. Many phones switch to a separate telephoto or folded periscope camera for this view.

Why Optical zoom matters

A zoom label does not promise equal quality in every light. Sensor size, focus, stabilization, processing, and the point where digital cropping begins still matter.

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mAh

Milliamp-hour, written mAh, describes electrical charge stored by a battery. It is a capacity figure rather than a direct measurement of hours of use.

Why mAh matters

Display efficiency, modem signal, processor load, heat, software, camera use, and standby behavior can make two equal-capacity phones last very different lengths of time.

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Watt charging

A charging watt figure describes electrical power at a moment in the charging process. A phone and charger negotiate power, and the rate usually changes as the battery fills or heats up.

Why Watt charging matters

The highest advertised wattage is not the average charging rate. Charger protocol, cable, temperature, battery percentage, and regional accessories affect the result.

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eSIM

An eSIM is a programmable subscriber identity built into a device. A carrier profile can be downloaded instead of inserting a removable plastic SIM card.

Why eSIM matters

Support varies by phone model, carrier, country, and plan. Moving service or recovering access can follow a different process from a physical SIM.

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IP68

IP68 is an ingress-protection classification. The first digit describes dust protection, while the second describes water testing under conditions stated by the manufacturer.

Why IP68 matters

It is not a permanent waterproof guarantee. Wear, drops, repairs, salt water, pressure, temperature, and test conditions can change the protection of a real phone.

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RAM

RAM is short-term working memory used by the operating system and active apps. More RAM can help a phone keep tasks available without reloading them.

Why RAM matters

Capacity alone does not define speed. Memory type, processor, storage, thermal limits, software, and the way an operating system manages background apps also matter.

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UFS storage

Universal Flash Storage is a storage standard used by many Android phones. Newer UFS generations can move data faster and more efficiently when the phone and software use that capability.

Why UFS storage matters

A generation label does not reveal storage capacity, sustained speed, free space, or app behavior. Those factors affect how fast a phone feels when moving or loading large files.

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Software support

Software support is the period and scope of operating-system upgrades, security patches, and sometimes feature updates promised for a phone.

Why Software support matters

The clock normally starts around release, not when a used phone is purchased. Policy, region, carrier, installed patch, app compatibility, and repair life all affect useful ownership.

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Use specifications together

Build a complete phone comparison

Display, processor, memory, storage, camera hardware, battery, charging, protection, and support affect one another. Use the phone comparison tool for two models, the phone finder for a wider shortlist, or return to the phone directory for complete records.