Home Tech Specs Comparison OPPO Reno4 vs Samsung Galaxy A51 Specs Comparison – Closer Than You...

OPPO Reno4 vs Samsung Galaxy A51 Specs Comparison – Closer Than You Think


Samsung is arguably the best Android manufacturer since smartphones. Most of its offerings always come with great displays and nice design. With the Galaxy A51, arguably its best mid-range phone in 2020, it further offers good battery life and decent cameras. But when you have OPPO Reno4 on the table, it feels like you’re comparing another Galaxy phone, but from another brand. Let’s check out their differences and similarities, shall we? 

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OPPO Reno4 and Samsung Galaxy A51 Similarities and Differences

Galaxy A51

Which is the better buy between the OPPO Reno4 and Samsung Galaxy A51?

Reno 4

Design and Display

OPPO loves to change its design philosophy nearly every six months. With the Reno4, we can comfortably say that it’s the better-looking phone out of the two. The matte finish on the back of the Blue color looks fresher than the subtle geometric pattern of the Galaxy A51, which has been used for several iterations now. The same goes for the camera module of OPPO that seems like frosted glass housing. If you want the classic Black color, it’s also available but features partly reflective patterns on the back that make it stand out a little bit. On top of looking good, Reno4 also is the thinner and lighter phone here. In the design department, we pick the Reno4 over the Galaxy A51 any day.

While Samsung usually thrives in the display category, it seems it doesn’t have the same advantage that it had before. The Galaxy A51 is no doubt the bigger and sleeker-looking screen here, thanks to the 6.5″ diagonal size with centered-pinhole cutout. However, Reno4 is sporting the same Super AMOLED FHD+ screen, albeit in 6.4″ size and lack of Gorilla Glass 3 protection. Though we expect the colors and brightness to be on par with each other, Samsung’s best mid-range phone yet narrowly beats OPPO’s.


Snapdragon 720G vs Exynos 9611 – If you want the best-performing handset, Reno4 easily beats Galaxy A51 in this comparison. Snapdragon 720G is the newer and more efficient chipset when compared to the Exynos 9611 that we’ve seen since the Galaxy A50. We said A50 because the 9611 is just a boosted version of the 9610. Despite ColorOS 7.1 being featured-packed as Samsung One UI 2.1, OPPO has done a great job in maintaining a smooth user experience whether it’s keeping multiple apps in the background or multitasking. You can expect Reno4 to hold out longer than Galaxy A51 due to the extra 2GB RAM that it has over 6GB. And while we’re looking at in-display scanners for both handsets, unfortunately, it’s also one of Samsung’s weakness regardless of the price point. 

Reno4 is taking this win, no doubt.

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Comparing the spec sheets, there’s little difference between the capabilities of the two. Regardless of your pick, a 48MP sensor is still the main shooter and video recording reaches up to [email protected] There’s a chance that Galaxy A51 will output sharper ultrawide and macro shots, due to the larger lens. Both are capable of [email protected] slow-mo effect, but Samsung beats OPPO’s implementation with hardware. In the real world, the Galaxy A51 outputs clearer slo-mo while the Reno4 may sometimes look like it’s jittering in some areas of the subject. It is basically the limitation of the software or when the camera relies too much on the enhancements. But on the flip side, the built-in camera app of Reno4 packs other features such as Color Point and Light Trails, among others. 

As for the selfie camera, Reno4 has the advantage of better stability due to EIS. You’ll definitely need a tripod, gimbal, or really steady hands to keep the footage of the A51 stable.

As discussed, the competition between the two is close, so we’re going to leave this one for you to decide.


There’s not a lot to say about the audio experience on either device. You’re still getting an audio jack and a south-firing mono speaker. The difference will come down to testing, so check out our review of each.


Both handsets come with 4000mAh typical battery capacity. While the Galaxy A51 is still stuck with 15W, the Reno4 doubles the rate for 30W charging. It allows the phone to go up to 50% in 20mins for quick top-ups.


Reno4 clearly has caught up to the Galaxy A51 on almost all fronts. Samsung’s refusal to put more 00mph on its mid-range offering has given its competitors a chance to challenge the market. And if you’re stuck on deciding between these two devices, OPPO’s newest mid-range phone just offers better value.

READ: OPPO Reno4 vs Xiaomi Mi Note 10 Lite Specs Comparison – Best Phone at P18,990

Specs OPPO Reno4 Samsung Galaxy A51
Display 6.4″ FHD+, Super AMOLED, pill-shaped cutout 6.5-inch FHD+ Super AMOLED display, Gorilla Glass 3
Design plastic body plastic back, plastic frame
Dimensions and Weight 160.3 x 73.9 x 7.7 mm, 165g 158.5 x 73.6 x 7.9 mm, 172g
CPU/Chipset Octa-core (2×2.3 GHz Kryo 465 Gold & 6×1.8 GHz Kryo 465 Silver) / Qualcomm SM7125 Snapdragon 720G (8 nm) Octa-core (4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53) / Exynos 9611 (10nm)
GPU Adreno 618 Mali-G72 MP3
Storage 128GB UFS 2.1 with dedicated microSD slot 128GB UFS 2.1 expandable
Main Camera
  • 48 MP, f/1.7, 26mm (wide), 1/2.0″, 0.8µm, PDAF
  • 8 MP, f/2.2, 119˚ (ultrawide), 1/4.0″, 1.12µm
  • 2 MP, f/2.4, (macro)
  • 2 MP, f/2.4, (depth)
  • up to [email protected] video recording with EIS
  • 48 MP, f/2.0, 26mm (wide), 1/2.0″, 0.8µm, PDAF
  • 12 MP, f/2.2, 123˚ (ultrawide)
  • 5 MP, f/2.4, (macro)
  • 5 MP, f/2.2, (depth)
  • up to [email protected] video with gyro-EIS
Selfie Camera
Connectivity & Ports 4G LTE, Bluetooth 5.0 WiFi ac, GPS, USB-C, audio jack 4G/LTE, Wi-Fi 802.11 ac, Bluetooth 5.0, GPS, A-GPS, GLONASS, Galileo, BDS, USB Type-C
Security face unlock, in-display scanner face unlock, in-display fingerprint scanner
Battery 4015mAh(30W) 4000mAh (15W)
Audio mono speaker mono speakers
OS Android 10, ColorOS 7.2 Android 10, One UI 2.1
Colors Galactic Blue, Space Black Prism Crush Black, White, Blue, Pink
Price P18,990 P17,990
Release Date August 15, 2020 (Philippines) December 16, 2019 (Global)
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