In the sub-$400 phone segment in 2022, many are unsure whether to opt for the Samsung Galaxy A33 5G or OPPO Reno7 4G as they seem quite similar in features.
To answer this question, let's compare these Samsung and OPPO phones to find the answer.
(Note: This article focuses on OPPO Reno7 4G, as Reno7 5G is in the over $250 price range).
1. Comparing the design of OPPO Reno7 4G and Samsung Galaxy A33 5G
Comparing the design of Galaxy A33 5G and Reno7 phones reveals distinct design languages:
- OPPO Reno7 4G features a screen with an in-display camera, flat edges, and a rear camera housed in a prominent small rectangle. The back is made of organic glass, creating a faux leather effect, giving the device a premium look. The frame is also made of plastic but is painted to create a metallic effect, resulting in an overall glossy appearance.

- Galaxy A33 5G boasts a U-Infinity display that feels somewhat outdated, yet the device still achieves a modern and youthful look with a frosted effect, making it quite impressive. Of course, the device still uses a plastic frame and back like the Reno7.

A plus point for the Galaxy A33 5G is its IP67 dust and water resistance rating, whereas the Reno7 4G lacks water and dust resistance capabilities. Overall, in terms of design, OPPO Reno7 vs Galaxy A33 have different strengths.
2. Comparing the display of OPPO Reno7 4G and Galaxy A33 5G
Both phones in the $400 segment are equipped with a Super AMOLED 6.4-inch full HD+ display, providing excellent display quality. Therefore, in terms of display, both these mid-range phones offer comparable effectiveness.
Moreover, both Reno7 4G and A33 5G feature a 90Hz refresh rate, ensuring smooth screen interactions. However, in our opinion, with its 'beauty mark' front camera design, Reno7 4G offers a more comfortable screen experience compared to Galaxy A33 5G. This aspect becomes significant during movie watching or gaming sessions.
3. Comparing the cameras of Galaxy A33 5G and OPPO Reno7
OPPO Reno7 is equipped with a triple rear camera setup consisting of 64MP+2MP+2MP sensors, and a 32MP front camera.
On the other hand, Galaxy A33 5G comes with a quad rear camera setup featuring 48MP+8MP+5MP+2MP sensors and a 13MP front camera.
Despite having sensors with higher 'megapixel' counts, real-world tests reveal that Samsung Galaxy A33 produces significantly better image quality compared to OPPO Reno7 4G. In terms of detail, image scenes, and color reproduction, A33's photos deliver better results for users.
However, in selfie image quality, OPPO Reno7 4G provides better results. Not only does it offer impressive sharpness, but it also includes various enhanced selfie modes, especially noteworthy are its VLOG features tailored for content creators on video-centric social media platforms like TikTok and YouTube.

4. Comparing the specifications of OPPO Reno7 4G and Galaxy A33 5G
Samsung equips the Galaxy A33 5G with the Exynos 1280 chip, coupled with 6GB RAM and 128GB internal storage. The device runs on Android 12 with OneUI 4.1 interface customization.
OPPO equips the Reno7 4G with the Snapdragon 680 chip, 8GB RAM, and 128GB internal storage, also running on Android 12 OS.
On Antutu 9, Reno7 4G scores 289,250 points, while Galaxy A33 5G scores 394,918 points. On Geekbench 5, Reno7 scores 1653, whereas A33 reaches 1900. Thus, it's evident that in terms of processing performance, Samsung Galaxy A33 5G outperforms Reno7 4G by a significant margin.
Additionally, it's worth mentioning that Galaxy A33 5G supports 5G network connectivity, while Reno7 only supports 4G. Therefore, in the future, Galaxy A33 5G will have more advantages.

5. Comparing the battery capacity of Galaxy A33 5G and OPPO Reno7
While the Galaxy A33 5G comes with a 5000 mAh battery, the OPPO Reno7 boasts a 4500 mAh battery – thus, the usage time with Galaxy A33 5G is slightly longer than Reno7.
However, equipped with 33W fast charging technology, the Reno7 also offers faster charging time compared to Galaxy A33 5G with 25W charging technology.
CONCLUSION: Which is better to buy, Galaxy A33 5G or OPPO Reno7 4G?
It can be seen that although priced around $400, each phone has its own strengths.
- OPPO Reno7 4G will be the choice for those who prioritize chic design and excellent selfie capabilities.
- Samsung Galaxy A33 5G, on the other hand, is preferred for its stability, better battery life, powerful specifications, and impressive main camera quality.
Users can weigh their needs to choose the phone that best suits their usage requirements.
