HDR vs night mode: which to use on your phone
Both modes take several frames and merge them, but they solve different problems. Here's what each one does, which to pick for common scenes, and when neither is the right answer.
The short answer
Use HDR when the light is bright but uneven, and Night mode when there's simply not enough light. Both take several frames and merge them into one photo. HDR merges them to fit a bright sky and dark shadows into one picture. Night mode merges them to collect more light and cancel noise.
What HDR mode does
A phone sensor can't record a bright sky and a shaded street in one exposure: one clips to white or the other drops to black. HDR (high dynamic range) takes a quick burst at different brightness levels and blends them, keeping detail in both. It happens in a fraction of a second, so you can use it handheld in daylight.
Many phones now do this automatically. The cost is a flatter, sometimes unnatural look when pushed hard, with dark outlines along bright edges.
What Night mode does
Night mode captures many frames over one to several seconds, aligns them and averages them. Random noise cancels out while the real detail adds up, so you get a brighter, cleaner photo than any single frame. It needs you, and ideally your subject, to stay still for the whole capture.
Which to use, scene by scene
| Scene | Use | Why |
|---|---|---|
| Sunny landscape with a bright sky | HDR | Keeps the sky and the shadows. |
| Backlit portrait, window behind | HDR | Lifts the face without blowing out the window. |
| Sunset with a dark foreground | HDR | Fits the bright sky and the dark land together. |
| Dim room, evening street | Night | Collects more light with less noise. |
| City lights at night | Night, or HDR if lights are very bright | Night for the dark areas; watch the lamps for clipping. |
| Moving people or pets at night | Neither: a single fast frame | Merging frames smears moving subjects. |
Ghosts, blur and other problems
- Ghosts: people or cars that moved between frames appear doubled or see-through. Use a single frame for moving subjects.
- Blur in Night mode: brace the phone on something solid, or use the self-timer so your tap doesn't shake it.
- A painted look: heavy merging plus noise reduction can smooth fine texture. If that bothers you, see why Android photos look over-processed.
- Clipped lights: neither mode can rescue a street lamp that's pure white. Lower the exposure a little.
For full manual control at night, see how to take better night photos on Android.
In One Camera
One Camera has HDR and Night multi-frame modes in the free version. For moving subjects, or when you want full control, One Camera Pro adds manual ISO and shutter speed, and RAW (DNG) for recovering highlights and shadows yourself.
Questions
Should I use HDR or Night mode?
Use HDR when the light is bright but uneven, such as a sunny sky with dark shadows. Use Night mode when the scene is dark. Both merge several frames, so for moving subjects a single fast frame is often better.
Does Night mode work for moving subjects?
Not well. Night mode merges frames over one or more seconds, so moving people, pets or cars come out blurred or ghosted. Use a single frame with a faster shutter instead.
Should I leave HDR on all the time?
Auto HDR is a good default in daylight. Turn it off if you see ghosting on moving subjects or an unnaturally flat look.