OnePlus 9 Pro vs Samsung Galaxy S21 Ultra: Is Samsung still the best?

Two of the biggest players in the space right now are the OnePlus 9 Pro and the Samsung Galaxy S21 Ultra. Are there enough differences to make them stand out from each other?

OnePlus 9 Pro Review:
Samsung Galaxy S21 Ultra Review:

Intro: 00:00
Design Comparison: 00:50
Displays: 02:26
Battery Life: 03:00
Performance: 04:56
UI: 06:04
The Cameras: 06:43
Prices: 10:19
Which one should you buy: 10:49

Visit our website:
Check out our favorite stuff on Amazon:
Download the Android Authority App:
Listen to our Podcast:

Follow us on social:

Affiliate Disclosure:
This post may contain affiliate links, when you buy through links in the description we may earn an affiliate commission. See our affiliate link policy for more details:

Follow the Team:
Luke Pollack:
Joe Hindy:
Gary Sims:


Author: avnblogfeed


25 thoughts on “OnePlus 9 Pro vs Samsung Galaxy S21 Ultra: Is Samsung still the best?

  1. Additional Information: It should be noted that this comparison is between the Snapdragon variant of the S21 Ultra, however, the Exynos 2100 does not perform as well as the 9 Pro, especially when it comes to GPU/Gaming performance.

  2. It's basically ui+better charging+ better gaming vs more premium design and feel + better camera. I'd take op9pro over s21 ultra anyday for that.

  3. I’m using the 9 pro from over 2 weeks and I am absolutely loving it 😍 there was a minimal heating issue but now it’s almost gone with the third update in my unit and the phone runs ultra smooth. Battery life also increased with the update now and camera’s improved 😍😍 overall no issue except these but they are gone with updates so I’m extremely happy buying the 9 pro. Comparison to s21 ultra or iPhone 12 pro with 9 pro (for us Indians) is stupid πŸ˜‚πŸ˜‚ as the 9 pro is 40k-45k (almost $750) cheaper πŸ˜‚πŸ˜‚πŸ˜‚ then s21ultra or 55k ($900) cheap then iPhone 12 Pro, I could go and return from Bangkok in that πŸ˜‚ for s21 and South Korea for iPhone 12 Pro πŸ˜‚πŸ˜‚πŸ˜‚πŸ˜‚

  4. The cameras on the S21U are sub-par for the spec as DXO Mark suggests with their forensic analysis. So, I suspect the OP9P matches or beats it.

    As for battery life, saying the s21U kills it, what is the proof? Since the updates, I have seen 7h+ on the OP9P and it now comes very close to matching the S21U mah for mAh!

    Checking out Speedtest G and it is clear the OP9P beats out the Exynos s21U by a good margin, maybe a generational difference and even the SD888 wins comfortably. It is clear the OP9P is the best in performance.

    Pricewise, the US market is not a good guide as in most other countries the OP9P falls between the s21 and s21+ in pricing and the S21U is Β£350 more retail so easy win for OP9P.

    Hard to buy the s21U without a big discount, but again that mainly happens in the US where Samsung is trying to destroy the competition with deals. In the UK we get the odd flash sale but give it two months and the OP9P will also get these discounts. So unless you are a hardcore Samsung, the OP9P is the def value choice out of the two.

  5. this is an anoying video becasue I agree with everything you say. I personally fall directly into the Samsung category. problem is… I hate samsung.

  6. Your words "all phones now a days are pretty much exactly the same two sheets of glass around aluminium centre" (something along those lines) your opening statement "these two phone designs couldn't be more different" is it me or have you already just made yourself look like a fool? Dislike πŸ‘ŽπŸΌ bye bye πŸ‘‹πŸΌ

  7. I've owned both. Sold the s21 Ultra because I didn't like the way the display was calibrated. There are more adjustment controls for tuning the display in the 9 Pro. Plus it was less expensive and the UI is just to fast!
    Bonus: They also included a free prize inside the box! A charger! 🀣

  8. The Samsung would have about 1 to 1.5 hrs of additional screen on time . To say one is a one day phone , the other a two day phone is just plain ridiculous πŸ€¬πŸ‘Ž

  9. Nice video. 1st time on your channel. I like your review style. However, $900 is anything but budget friendly. It’s still expensive, just not as much as the Samsung perhaps is better fitting way to class it.

  10. With carrier discount its same price for S21 ultra 256gb and oneplus 9 pro 256gb where I live. I gets buds pro free with the galaxy phone while with oneplus I get charger free. Then I decided to replace my galaxy s9+ which is 3+ years old but works so fine that I just got bored that it just doesnt get old. I trust Samsung and also seeing buds pro free. S21 Ultra became my choice. The presenter just forgot to mention about S-pen support in galaxy S21 ultra. πŸ™‚

  11. Ok so I have had a OnePlus 9 pro and traded for the S21 ultra.
    The S21 ultra In the UK isn't as good as reviews would have you believe.
    Not sure if it's the Snapdragon 888 in other regions but the UK model with exynos has average battery at best.

Comments are closed.