O2
We checked 8 streaming services in India on 07 Jun 2026 at 18:24 IST
About
A brilliant doctor battles her childhood trauma, to revive the dead with an illegal intravenous oxygen drug. Her quest challenges the boundaries of science, spirituality, and love. Will she succeed or lose everything!
Cast
Where does O2 rank today?
O2 is #10000 on the CineFlixo Daily Streaming Charts today.
- Highest: #10000
- Top 10: 0 days
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Watch O2 Online Free in HD
Looking for a place to watch O2 online for free? You've landed on the right page. O2 is a talked-about KN thriller and science fiction movie from 2024 that you can stream right now on CineFlixo in high quality, no signup required.
About O2
A brilliant doctor battles her childhood trauma, to revive the dead with an illegal intravenous oxygen drug. Her quest challenges the boundaries of science, spirituality, and love. Will she succeed or lose everything! Running 105 minutes.
O2 Cast and Characters
The cast features Ashika Ranganath (as Shraddha), Praveen Tej (as Dev), Raaghav Nayak (as Osho), Prakash Belawadi (as Dr. Mrutyunjay), and Siri Ravikumar (as Shrushti). Their performances are a major reason O2 has built such a passionate audience.
Where to Watch O2 Online
CineFlixo lets you stream O2 online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch O2 NowWhy People Are Watching O2
O2 flies under the radar but it deserves your attention. What makes it work is tight pacing that earns its twists and world-building that respects the audience's intelligence. If you enjoy KN storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about O2
Where can I watch O2 online for free?
You can watch O2 online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is O2?
O2 runs for 105 minutes (about 1.8 hours).
Is O2 good? What's the rating?
O2 holds a 0.0/10 rating based on 0 reviews — a niche pick worth checking out.
Who is in the cast of O2?
The main cast includes Ashika Ranganath, Praveen Tej, Raaghav Nayak, and Prakash Belawadi, plus a strong supporting ensemble.
Is O2 available in KN?
Yes — O2 was originally produced in KN and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was O2 released?
O2 was released in 2024.
Do I need an account to watch O2 on CineFlixo?
No. CineFlixo is free and you can watch O2 without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
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Frequently Asked Questions
Common questions about O2
Where can I watch O2 for free?
You can watch O2 (2024) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is O2 about?
O2 is a Thriller/Science Fiction Kannada-language film. A brilliant doctor battles her childhood trauma, to revive the dead with an illegal intravenous oxygen drug. Her quest challenges the boundaries of science, spirituality, and love. Will she succeed or lose everything!
When was O2 released?
O2 was released on April 19, 2024. It has a runtime of 1h 45m. The film was produced by PRK Productions.
Who stars in O2?
O2 stars Ashika Ranganath, Praveen Tej, Raaghav Nayak and Prakash Belawadi. The full cast list is available in the Cast section above.
Is O2 available in HD?
Yes, O2 is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.