Sony a7 III vs a7 IV in India: Is the Upgrade Worth It
Compare the Sony a7 III and a7 IV by sensor, video, viewfinder and battery to decide if the upgrade is worth it in India.
26 October 2026
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If you shoot mostly stills and want a full frame Sony for less money, the a7 III is still a capable camera. If you shoot video, want sharper detail, or want a better screen and viewfinder, the a7 IV is worth the upgrade. The a7 IV adds a 33 MP sensor, 4K 60p in Super 35mm mode and a vari-angle touchscreen.
This guide compares the two bodies and the kits we list in India, using published specifications, so you can decide whether the step up fits the way you shoot.
Sony a7 III vs a7 IV at a glance
| Sony a7 III | Sony a7 IV | |
|---|---|---|
| Sensor | 24 MP full frame BSI CMOS | 33 MP full frame BSI CMOS |
| Processor | BIONZ X | BIONZ XR |
| Phase detection AF points | 693 | 759 |
| Continuous shooting | 10 fps | 10 fps |
| Native ISO | 100 to 51,200 | 100 to 51,200 |
| Image stabilisation | 5 axis in body | 5 axis in body |
| Viewfinder | 2.36 million dot OLED | 3.69 million dot OLED |
| Rear screen | 3 inch touchscreen, 921,600 dots | 3 inch vari-angle touchscreen, about 1.04 million dots |
| 4K video | 4K 24p and 30p | 4K 30p full frame, 4K 60p in Super 35mm mode |
| Battery | NP-FZ100, rated 710 shots | NP-FZ100, rated about 580 shots (LCD) and 520 (EVF) |
| Weight with battery | 650 g | 658 g |
| USB port | USB-C | USB-C, faster 10Gbps |
| Video output | Micro HDMI | Full size HDMI |
Both bodies share the Sony E-mount, dual card slots and a weather sealed magnesium alloy body, so your lenses and batteries carry over from one to the other.
Sony a7 III: the proven full frame all rounder
Best for: stills shooters, wedding and event photographers, and anyone stepping up from a crop sensor camera on a tighter budget.
The Sony a7 III body pairs a 24 MP sensor with 693 phase detection points, 10 fps shooting and in body stabilisation. The 24 MP files are easier on storage and editing than 33 MP files. Battery life is its strong point, with a CIPA rating of 710 shots.
If you do not own a lens yet, the Sony a7 III with 28-70mm lens kit gives you a ready to shoot setup.
Limits: the 4K output tops out at 30p, and the viewfinder and rear screen are lower resolution than on the a7 IV.
Sony a7 IV: the hybrid upgrade
Best for: hybrid shooters who make photos and video, and anyone who crops hard or prints large.
The Sony a7 IV body moves to 33 MP and the BIONZ XR processor, with 759 phase detection points and continuous Eye AF for humans, animals and birds. The 3.69 million dot viewfinder is a clear step up from the a7 III. The vari-angle screen helps with vlogging, low angles and tripod work.
For video you get 4K 30p with oversampling in full frame mode and 4K 60p in Super 35mm mode. Both cameras shoot Full HD slow motion, with the a7 IV rated up to 120 fps.
Pick the Sony a7 IV with 28-70mm lens kit for a single box starting setup, or the Sony a7 IV with backpack if you also need a bag. Check availability on each before you plan around it.
Limits: battery life is lower than the a7 III on the same NP-FZ100 battery, and the 33 MP files need more card space and a faster computer.
Is the upgrade worth it?
- Upgrade to the a7 IV if you shoot video, vlog, crop in often, or want the better viewfinder and the vari-angle screen.
- Stay with or buy the a7 III if you shoot mostly photos, need long battery life, or want to put the savings into a better lens.
- Moving from a crop sensor body: either camera is a big step. Choose by video need first, then budget.
- Already own an a7 III and it works for you: the extra resolution alone rarely justifies a swap. Upgrade when you hit a real limit, such as 4K 60p or the screen.
Before you order
- Lenses: both take E-mount lenses. Our E vs FE lens guide explains which ones suit full frame.
- Batteries: both use the NP-FZ100. Read original vs third party camera batteries before buying spares.
- Cards: 33 MP files and 4K video need fast cards. See the memory card guide.
- Availability: stock changes, so check each kit before you plan a shoot around it.
Frequently asked questions
Is the Sony a7 IV better than the a7 III?
For most features, yes. It has a higher resolution sensor, a newer processor, more AF points, a sharper viewfinder and a vari-angle screen. The a7 III keeps the edge on rated battery life.
How many megapixels do the a7 III and a7 IV have?
The a7 III has 24 megapixels and the a7 IV has 33 megapixels, both on a full frame BSI CMOS sensor.
Does the a7 III shoot 4K 60p?
No. The a7 III records 4K at up to 30p. The a7 IV adds 4K 60p in Super 35mm mode.
Do the two cameras use the same battery and lenses?
Yes. Both use the NP-FZ100 battery and the Sony E-mount, so existing lenses and batteries work on either body.
Which kit should a beginner buy?
A kit with the 28-70mm lens is the simplest start. Pick the a7 III kit to keep cost down, or the a7 IV kit if video matters to you.
See the full Sony range and our mirrorless cameras, or read our guide to which Sony a7 body to buy before you decide.
Comparing other Sony bodies as well? See best Sony mirrorless camera in India.
