- AMOLED / OLED
- Each pixel emits its own light, enabling true black and very high contrast.
- IPS / LCD
- A backlit display technology that can offer accurate color and strong brightness at lower cost.
- Tandem OLED
- Two light-emitting layers are stacked to raise brightness and manage longevity.
- Kaleido color E Ink
- A color-filter layer over monochrome e-paper; calm and efficient, but less saturated than LCD or OLED.
- Refresh rate
- How many times the display can redraw each second. Higher values make motion and ink feel smoother.
- Touch sampling
- How often touch input is measured. It is related to, but not identical with, display refresh.
- Active stylus
- A powered or digitizer-linked pen that can report pressure, tilt, hover, or buttons.
- Palm rejection
- Software and digitizer behavior that ignores a resting hand while the pen is in use.
- Unified memory
- A memory pool shared by processor components; common on Apple silicon.
- microSD
- Removable storage useful for files and media, though app support varies.
- Thunderbolt
- A high-speed USB-C-shaped connection for storage, docks, and displays on supported models.
- DisplayPort Alt Mode
- A USB-C capability that sends video to an external monitor without a separate video connector.
- Wi-Fi 7
- A newer wireless generation whose benefits require a compatible router and network conditions.
- eSIM
- A software-configured cellular subscription, avoiding a removable SIM card.
- IP68
- A standardized dust and water ingress rating under defined test conditions; not blanket damage protection.
- MIL-STD-810H
- A family of environmental test methods. The manufacturer should state which tests and limits were used.
- DeX
- Samsung’s desktop-style interface for multitasking with keyboard, pointer, and sometimes an external display.
- Stage Manager
- Apple’s windowing system for arranging overlapping app windows on supported iPads.
- Digitizer
- The sensor layer that tracks an active pen. Pen compatibility depends on this technology, not the tablet’s USB-C port or magnetic edge.
- Initial activation force
- The pressure needed before a pen begins drawing. Lower force can make faint strokes and tapered lines easier.
- Parallax
- The apparent gap between the pen tip and the pixels below it, influenced by display-layer thickness and viewing angle.
- Laminated display
- A panel whose cover glass and display layers are bonded closely, reducing reflections and the visible gap under a pen.
- PWM
- Pulse-width modulation, a brightness-control method that rapidly switches light output; some viewers are sensitive to its flicker.
- Nits
- A measure of luminance. Peak claims do not always describe sustained full-screen brightness or outdoor readability.
- Color gamut
- The range of colors a display can reproduce. Coverage matters only with calibration, app support, and a managed workflow.
- UFS storage
- Fast soldered flash storage common in Android tablets; generation and controller affect app loads and large-file transfers.
- USB4
- A high-bandwidth USB-C connection that can carry data, displays, and power; supported features still vary by device and cable.
- GNSS
- Satellite positioning across systems such as GPS and Galileo. On some families it appears only on cellular configurations.
- MDM
- Mobile device management: organizational tools for enrollment, policy, apps, certificates, updates, lock, and remote wipe.
- Kiosk mode
- A managed configuration that limits the tablet to one app or a controlled set of functions.
- Hot-swap battery
- A battery that can be exchanged while the device keeps running, usually with a small internal reserve or dual-battery design.
- Anti-glare vs matte
- Anti-glare coatings reduce reflections; textured matte layers scatter more light and can change sharpness, sparkle, and pen wear.
- Widevine level
- A DRM capability that can affect the maximum resolution available from protected streaming services on some Android devices.
- Arm compatibility
- Whether apps, plug-ins, drivers, games, and peripherals run natively or reliably through translation on an Arm-based Windows tablet.
- Repairability
- How readily parts can be replaced using available manuals, tools, components, and service channels—not just whether a device opens.
- Support runway
- The remaining period of promised OS and security updates, measured from the device’s launch rather than the day you buy it.
