Canon PowerShot G1 X Mark III Review: Is This APS-C Compact Still Worth Buying?

The Canon PowerShot G1 X Mark III is an unusual compact camera: it combines a 24.2-megapixel APS-C sensor with a built-in 24–72mm equivalent zoom, electronic viewfinder and vari-angle touchscreen. In image quality terms, its sensor is closer to a Canon DSLR than to the 1-inch sensors used by many premium compacts.

That sounds like the ideal travel camera, but the design has real trade-offs. The zoom is short, it becomes f/5.6 at the 72mm end, battery life is modest and video stops at Full HD. The G1 X Mark III makes sense for someone who values sensor size and a small all-in-one body more than long reach or modern video features.

What an APS-C sensor changes

The larger sensor is the central reason to consider this camera. Compared with a typical 1-inch compact, it can give cleaner files at higher ISO settings, more flexibility when editing RAW images and a little more ability to separate a subject from the background at the wider end of the zoom.

It does not turn the G1 X Mark III into a full interchangeable-lens DSLR. The lens is fixed, so you cannot add a brighter prime or a long telephoto later. But for travel, family photographs, street scenes and landscapes, the combination is simpler than carrying a body and several lenses.

The lens is both the benefit and the compromise

The built-in lens covers a useful 24–72mm equivalent range. At 24mm it works for travel scenes, architecture and environmental portraits; 72mm is enough for a tighter portrait or a detail, but it is not enough for wildlife or distant sport.

The aperture is f/2.8 at the wide end and f/5.6 at the telephoto end. That matters in low light. At 24mm, the lens is reasonably bright; at 72mm, you may need to raise ISO or lower shutter speed. Understanding the relationship between aperture, shutter speed and sensitivity is more useful here than reading a maximum ISO number—this guide to camera aperture explains why.

Viewfinder, screen and controls

The G1 X Mark III includes a 2.36-million-dot electronic viewfinder and a fully articulating touchscreen. The viewfinder is valuable in bright sunlight, while the screen can face forward, upward or downward for low-angle compositions, tripod work and self-recording.

Canon’s Touch and Drag AF lets you move the focus point on the rear screen while using the viewfinder. This can be quicker than using directional buttons, though it takes a little practice to avoid moving the point accidentally. The eye sensor can also be annoying when the screen is swung out, because a hand near it may switch the display unexpectedly.

Autofocus, stabilisation and burst shooting

Dual Pixel CMOS AF gives the camera reliable focus for ordinary stills and smoother transitions in video than many older compact cameras. It is well suited to travel, people, family occasions and static subjects. It is not a replacement for the advanced subject detection and sustained tracking available on newer mirrorless cameras.

Optical image stabilisation helps with hand-held stills and video, particularly at the longer end of the zoom, but it cannot freeze a moving subject. For a person walking indoors or a child running, shutter speed still matters; raising ISO is often the more realistic solution.

The camera can shoot quickly in favourable conditions, but it should not be bought primarily for fast action. The short telephoto reach and the limits of its older tracking system make it a better everyday compact than a dedicated sports or bird camera.

Video and connectivity

The G1 X Mark III records Full HD video up to 60p, with Dual Pixel AF helping focus transitions look smoother. The absence of 4K is its clearest age-related limitation. If travel video, vlogging or cropping 4K footage is a priority, newer compact and mirrorless cameras offer more flexibility.

Wi-Fi, Bluetooth and NFC support image transfer and remote control with Canon’s app. These are useful convenience features, not a professional high-speed transfer system. The camera uses a single UHS-I SD card slot.

Battery life and weather resistance

The compact body uses Canon’s NB-13L battery. Its official rating is modest, so a spare is not optional for a full day of travel. Carrying a second battery is much easier than carrying a second camera, and it prevents the compact design becoming a limitation.

The body has dust- and moisture-resistant construction, but that is not the same as waterproofing. It is useful extra reassurance in light rain or dusty travel conditions, not permission to expose the camera to heavy rain or submerge it.

What you need besides the product

• At least one spare NB-13L battery and a way to charge it while travelling.
• A reliable UHS-I SD card; video and RAW files fill small cards faster than many buyers expect.
• A compact travel tripod if landscapes, self-timer shots or low-light scenes are part of the plan.
• A realistic expectation of the 24–72mm lens. If you need long wildlife reach or very shallow depth of field at telephoto, a fixed-lens compact is the wrong tool.

Based on published specifications, not a personal hands-on test. Check battery condition, lens operation, zoom smoothness and the screen hinge carefully when considering a used example.

The 30-second decision

• Buy it if: you want DSLR-like APS-C image quality in a small travel camera and the 24–72mm equivalent lens matches how you photograph.
• Skip it if: you need 4K video, long zoom reach, strong action tracking or the freedom to change lenses.
• Spend more if: you want a newer compact or mirrorless system with better video, battery life and subject tracking.

Verdict

The Canon PowerShot G1 X Mark III remains an appealing niche compact rather than a universal recommendation. Its APS-C sensor, EVF and articulating screen make it more serious than most compact cameras, while the fixed 24–72mm lens keeps it simple and portable. Buy it for high-quality travel and everyday stills, not for telephoto reach or modern hybrid video.