The difference between haptic feedback that conveys the sensation of a raindrop and feedback that just buzzes is not intensity. It is the hardware's ability to produce controlled waveforms and the care taken in designing those waveforms.
Most people have experienced both and attributed the difference to the device being expensive rather than to a specific technical distinction.
What changed in 2026
- Linear actuators spread further. More devices across price ranges used actuators capable of controlled waveforms rather than simple rotating masses.
- Authoring tools matured. Software for designing haptic waveforms alongside audio and visuals made good haptics more accessible to developers.
- Standardization advanced. Common formats for haptic content improved portability between devices.
- Wearable haptics stayed niche. Vests, gloves, and other body-worn feedback remained specialist rather than mainstream.
Actuator types
| Type |
What it can do |
Typical use |
| Eccentric rotating mass |
Buzz, with slow start and stop |
Cheap devices, basic alerts |
| Linear resonant actuator |
Controlled pulses at a resonant frequency |
Phones, controllers |
| Wide-band linear actuator |
Varied frequencies and amplitudes |
Premium phones and controllers |
| Voice coil |
Broad frequency response, high fidelity |
High-end haptics |
| Piezoelectric |
Very fast, small displacement |
Specialized applications |
The first row explains most bad haptics. A rotating mass motor spins up to produce vibration and spins down to stop, so it cannot start or stop quickly and cannot vary its character. Everything it produces is a buzz of varying length. That is why cheap device haptics all feel the same.
Linear actuators move a mass back and forth along an axis, driven by a signal. They start and stop nearly instantly and can produce different frequencies and amplitudes, which is what allows a sharp tap to feel different from a soft thud.
Waveform design
Given capable hardware, quality comes from the signal. Haptic effects are designed like short audio clips — an envelope with attack, sustain, and decay, at particular frequencies.
A convincing impact has a sharp attack and quick decay. A texture is a rapid sequence of small pulses. A sense of weight comes from a slower envelope with lower frequency content.
This is why good haptics are authored rather than generated. A developer designing an effect for a specific event, timed to the visual and audio, produces something that reads as physical. A generic vibration triggered by an event type does not.
Skin frequency sensitivity constrains the design space. Mechanoreceptors respond most strongly within a particular frequency band, and effects outside it are felt weakly or not at all regardless of amplitude. Effective haptics work within that band, which is why the range of useful frequencies is narrower than the actuator's capability.
Latency
Haptic feedback must arrive with the event it represents. The tolerance is small — feedback arriving noticeably after the visual event does not read as the same event, it reads as a separate buzz.
That makes haptic latency a system-level concern spanning the application, the operating system, and the transport to the device. Wireless controllers add transmission delay, which is one reason wired connections produce tighter feedback.
For virtual and mixed reality specifically, haptics contribute meaningfully to presence — the sense that virtual objects are real. Touching something and feeling appropriate feedback at the right moment is a strong presence cue, and feedback that is delayed or generic actively undermines it.
Common mistakes
- Judging haptics by strength. Intensity is the signature of poor implementations.
- Generic effects for every event. Authored effects are what convey material and impact.
- Ignoring latency. Late feedback reads as a separate event.
- Using frequencies outside skin sensitivity. Felt weakly regardless of amplitude.
- Assuming all vibration hardware is equivalent. Actuator type sets the ceiling.
FAQ
Why do some phone keyboards feel better than others?
Actuator quality and waveform design. A sharp short pulse from a linear actuator reads as a key press; a buzz from a rotating mass does not.
Can software improve bad hardware?
Marginally. A rotating mass motor cannot produce sharp transients regardless of the signal.
Do haptic gloves work?
They exist and convey limited sensation. Force feedback — resisting your movement — is a much harder problem than vibration and remains specialist.
Does haptic feedback drain battery?
Actuators consume power when active. Typical use is brief enough that the effect is modest.
Where to go next
For related headset capabilities, read VR headset comfort, eye tracking explained, and passthrough AR explained.