Phone boxes in India love big camera numbers: 108MP, 200MP, "quad camera". Yet a 50MP phone often takes better photos than a 200MP one at the same price. Here is how to read camera specs like a reviewer.
Why megapixels are mostly marketing
Megapixels tell you how many pixels the sensor has, not how good each pixel is. Packing 200 million pixels onto a small sensor makes every pixel tiny, and tiny pixels capture less light. To fix this, phones use pixel binning — combining groups of 4, 9 or 16 pixels into one larger "super pixel". So a 200MP camera usually saves 12.5MP photos by default, and a 50MP camera saves 12.5MP too.
High-megapixel modes do help in bright daylight when you want to crop into a photo. In low light or indoors, they rarely help and files become very large.
The specs that actually matter
1. Sensor size
This is the single most important hardware factor. It is written as a fraction like 1/1.56" or 1/1.3" — and confusingly, a smaller number after the slash means a bigger sensor. A 1/1.3" sensor collects far more light than a 1/2.76" one, which means cleaner night photos, better dynamic range and more natural background blur.
2. Aperture
Written as f/1.8, f/1.7 and so on. A lower number means a wider opening and more light. Differences of 0.1 matter less than sensor size, but a main camera around f/1.8 or wider is a good sign.
3. OIS (optical image stabilisation)
OIS physically steadies the lens. It allows longer exposures at night without blur and gives smoother video. At ₹15,000–₹25,000, OIS on the main camera is one of the most useful features to look for.
4. Image processing
Software decides colours, skin tones, HDR and night mode. This is why Pixels and iPhones produce excellent photos from sensors that look ordinary on paper. Processing can't be judged from a spec sheet — you need sample photos.
About those extra cameras
- 2MP macro and depth sensors — almost always filler to make the phone look like it has more cameras. Ignore them.
- Ultra-wide — genuinely useful for groups, architecture and travel, but quality varies a lot. An 8MP ultra-wide is usually soft; 12–50MP is better.
- Telephoto — a real optical zoom lens (2x, 3x or periscope 5x) is a big upgrade for portraits and distant subjects. "Digital zoom" or "AI zoom" alone is just cropping.
Selfie cameras and video
For selfies, look for autofocus and good skin-tone processing rather than megapixels. For video, check whether the phone shoots 4K at 30 or 60fps and whether stabilisation works at 4K — many budget phones stabilise only at 1080p.
How to compare two phones properly
- Compare main sensor size and whether it has OIS.
- Check for a real telephoto if you care about portraits or zoom.
- Look at full-resolution sample photos from reviewers, especially night shots and indoor shots of people.
- Watch a video sample shot while walking.
- Ignore the total megapixel count and the number of lenses.
Bottom line
Sensor size, OIS and processing make the photo; megapixels sell the box. A phone with a large 50MP main sensor and OIS will beat a 200MP phone with a small sensor in the situations you shoot most — indoors, at night and of people who don't stand still.
