What is the difference between OIS and sensor-shift stabilization?

Traditional OIS moves the lens to compensate for hand movement, while sensor-shift OIS moves the image sensor itself. Sensor-shift is more effective because the sensor is lighter than the lens and can be adjusted more precisely. Sensor-shift OIS was introduced on iPhone 12 Pro Max and is now standard on all iPhone 15 and 16 models.

Does image stabilization affect iPhone storage?

Image stabilization itself does not directly affect storage. However, it enables the camera to take sharper photos in more conditions, which may encourage you to keep more photos. Videos recorded with Action Mode may have slightly different file sizes due to the computational processing involved, but the difference is minimal.

What is Action Mode on iPhone?

Action Mode is a software-based video stabilization feature on iPhone 14 and later that produces extremely smooth handheld video, similar to using a gimbal. It works by aggressively cropping the video frame and using computational processing to stabilize the footage. The trade-off is a slight reduction in resolution. To enable it, open Camera, switch to Video mode, and tap the Action Mode icon (running person).

What Is Image Stabilization on iPhone? Definition and Guide

What Is Image Stabilization?

Image stabilization on iPhone is a hardware and software system that compensates for hand movement and vibration to produce sharper photos and smoother videos. Modern iPhones use sensor-shift optical image stabilization (OIS), which physically moves the camera sensor to counteract movement up to 5,000 times per second. This is more effective than older lens-based OIS systems because the sensor is lighter and can move more precisely. Image stabilization is especially important in low light, when the camera uses slower shutter speeds that are more susceptible to motion blur.

Types of Image Stabilization on iPhone

Optical Image Stabilization (OIS)

OIS uses physical hardware — gyroscopes detect movement and tiny motors shift either the lens or sensor to compensate. OIS has been available since iPhone 6 Plus. It reduces blur without any image quality loss because it is a mechanical correction, not a digital one.

Sensor-Shift OIS

Introduced with iPhone 12 Pro Max and now standard across the iPhone 15 and 16 lineup, sensor-shift OIS moves the image sensor itself rather than the lens. This provides more precise stabilization because the sensor is lighter than the lens assembly. Sensor-shift OIS stabilizes across all lenses, including the ultra-wide camera.

Action Mode

Action Mode is a software-based stabilization available in video recording on iPhone 14 and later. It uses aggressive cropping and computational processing to produce extremely smooth handheld video, similar to using a gimbal. The trade-off is a slight reduction in resolution due to the crop.

Impact on Photo Quality

Image stabilization is most noticeable in low-light photography. Without stabilization, photos taken in dim environments often appear blurry. With sensor-shift OIS, the iPhone can use shutter speeds up to 3x longer while keeping the image sharp, allowing more light to reach the sensor.

For tips on taking better photos, see our complete iPhone guide. Learn about Deep Fusion and other iPhone camera technologies.

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Free · iPhone · iOS 16+ · 100% on-device

Free · iPhone · iOS 16+