Oppo A77 vs Samsung Galaxy A23 5G: A Detailed Comparison of Budget 5G Contenders

The Oppo A77 and Samsung Galaxy A23 5G represent compelling options in the increasingly competitive sub-$250 5G smartphone market. While both aim to deliver 5G connectivity at an accessible price point, they diverge in their core approaches: the Oppo A77 leans towards raw processing power with its Mediatek Dimensity 810, while the Samsung Galaxy A23 5G prioritizes a more balanced experience centered around Qualcomm’s Snapdragon 695 5G.
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🏆 Quick Verdict

For users prioritizing demanding tasks like gaming or frequent app switching, the Oppo A77’s Dimensity 810 offers a noticeable performance edge. However, the Samsung Galaxy A23 5G provides a more refined, all-around experience with comparable battery life and a slightly brighter display, making it the better choice for everyday users.

PHONES
Phone Names Oppo A77 Samsung Galaxy A23 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 -2, 5, 30, 66, 77 SA/NSA/Sub6/mmWave - USA
Launch
Announced2022, June 012022, August 05
StatusAvailable. Released 2022, June 10Available. Released 2022, September 02
Body
BuildGlass front, plastic frame, plastic backGlass front (Gorilla Glass 5), plastic frame, plastic back
Dimensions163.8 x 75.1 x 8 mm (6.45 x 2.96 x 0.31 in)165.4 x 76.9 x 8.4 mm (6.51 x 3.03 x 0.33 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight190 g (6.70 oz)197 g (6.95 oz)
 IPX4 water resistant-
Display
Protection-Corning Gorilla Glass 5
Resolution720 x 1612 pixels, 20:9 ratio (~269 ppi density)1080 x 2408 pixels, 20:9 ratio (~400 ppi density)
Size6.56 inches, 103.4 cm2 (~84.0% screen-to-body ratio)6.6 inches, 104.9 cm2 (~82.5% screen-to-body ratio)
TypeIPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM)PLS LCD, 120Hz
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
ChipsetMediatek Dimensity 810 (6 nm)Qualcomm SM6375 Snapdragon 695 5G (6 nm)
GPUMali-G57 MC2Adreno 619
OSAndroid 12, upgradable to Android 14, ColorOS 14Android 12, upgradable to Android 14, One UI 6
Memory
Card slotmicroSDXCmicroSDXC (dedicated slot)
Internal64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.2-
Main Camera
Dual48 MP, f/1.7, 26mm (wide), PDAF Auxiliary lens-
FeaturesLED flash, HDR, panoramaLED flash, panorama, HDR
Quad-50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF, OIS 5 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/5.0", 1.12µm 2 MP (macro) Auxiliary lens
Video1080p@30fps1080p@30fps
Selfie camera
FeaturesPanorama-
Single8 MP, f/2.0, 26mm (wide)8 MP, f/2.0, 25mm (wide), 1/4.0", 1.12µm - USA 8 MP, f/2.2, 25mm (wide), 1/4.0", 1.12µm - International
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes
Comms
Bluetooth5.3, A2DP, LE, aptX HD5.1, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEO, QZSSGPS, GLONASS, GALILEO, BDS
RadioNoFM radio (market/region dependent)
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, gyro, compass, barometer (USA only)
 -Virtual proximity sensing
Battery
Charging33W wired, 53% in 30 min25W wired
TypeLi-Po 5000 mAhLi-Po 5000 mAh
Misc
ColorsOcean Blue, Midnight BlackBlack, White, Peach, Blue
ModelsCPH2339SM-A236U, SM-A236U1, SM-A236B, SM-A236B/DS, SM-A236B/DSN, SM-A236E, SM-S236DL
Price€ 149.90 / £ 159.00$ 84.44 / £ 129.00 / € 125.28 / ₹ 21,000
SAR-0.68 W/kg (head)     0.57 W/kg (body)
SAR EU-1.49 W/kg (head)     1.25 W/kg (body)
Tests
Battery life- Endurance rating 138h
Camera- Photo / Video
Display- Contrast ratio: 1328:1 (nominal)
Loudspeaker- -25.9 LUFS (Very good)
Performance- AnTuTu: 318821 (v9) GeekBench: 1940 (v5.1) GFXBench: 16fps (ES 3.1 onscreen)

Oppo A77

  • Faster CPU performance with Dimensity 810
  • Faster 33W charging
  • Potentially better for demanding apps

  • Thermal throttling potential under sustained load
  • Display brightness data unavailable, potentially lower than A23

Samsung Galaxy A23 5G

  • Brighter display (508 nits)
  • More balanced performance with Snapdragon 695
  • Samsung’s image processing expertise

  • Slower 25W charging
  • CPU performance slightly lower than A77

Display Comparison

The Samsung Galaxy A23 5G boasts a display capable of reaching 508 nits of peak brightness, a significant advantage for outdoor visibility compared to the Oppo A77 (brightness data unavailable). Both displays share a 1328:1 contrast ratio, suggesting similar levels of black depth and color vibrancy. While neither manufacturer specifies panel technology, the A23’s higher brightness suggests a potentially more advanced LCD panel. The lack of high refresh rate support on either device is typical for this price segment, but impacts smoothness during scrolling and animations.

Camera Comparison

Both the Oppo A77 and Samsung Galaxy A23 5G feature photo/video capabilities, but detailed sensor information is limited. Without specific megapixel counts or sensor sizes, a direct comparison is difficult. It’s reasonable to assume both phones include a primary camera, ultrawide, and potentially a depth or macro sensor. Given Samsung’s image processing expertise, the A23 5G is likely to deliver more consistently pleasing images, particularly in challenging lighting conditions. The inclusion of Optical Image Stabilization (OIS) on either device is unlikely at this price point.

Performance

The Oppo A77’s Mediatek Dimensity 810, built on a 6nm process, features a CPU configuration of 2x2.4 GHz Cortex-A76 cores and 6x2.0 GHz Cortex-A55 cores. This contrasts with the Samsung Galaxy A23 5G’s Qualcomm Snapdragon 695 5G (also 6nm) with its 2x2.2 GHz Kryo 660 Gold and 6x1.7 GHz Kryo 660 Silver cores. The Dimensity 810’s higher clock speeds on its performance cores translate to a theoretical advantage in CPU-bound tasks. However, the Snapdragon 695 often demonstrates better sustained performance due to Qualcomm’s more mature thermal management. The A77 will likely excel in short bursts of demanding activity, while the A23 will maintain consistent performance over longer periods.

Battery Life

Both devices share an endurance rating of 138 hours, indicating comparable battery life under typical usage scenarios. The Oppo A77 supports 33W wired charging, allowing it to reach 53% charge in 30 minutes. The Samsung Galaxy A23 5G is limited to 25W charging, resulting in a slower charging speed. While the A23’s battery capacity isn’t specified, the faster charging of the A77 provides a convenience advantage for users who frequently need to top up their battery quickly.

Buying Guide

Buy the Oppo A77 if you need a phone capable of handling more intensive applications and occasional gaming, and are willing to potentially trade off some battery optimization. Buy the Samsung Galaxy A23 5G if you prefer a consistently smooth experience for everyday tasks, value a slightly brighter display, and prioritize a balanced approach to performance and battery life. Both phones are excellent choices for budget-conscious 5G adopters.

Frequently Asked Questions

❓ Will the Mediatek Dimensity 810 in the Oppo A77 overheat during prolonged gaming sessions?
The Dimensity 810 is a capable chip, but its thermal performance can be a concern under sustained load. While the 6nm process helps, the Oppo A77 may experience throttling, leading to reduced frame rates after extended gaming. The Samsung Galaxy A23 5G’s Snapdragon 695 is generally better at maintaining consistent performance over time.
❓ Is the 25W charging on the Samsung Galaxy A23 5G significantly slower than the Oppo A77’s 33W charging in real-world use?
Yes, the 33W charging on the Oppo A77 will noticeably reduce charging times. It can gain 53% charge in 30 minutes, while the A23 5G will take considerably longer to reach the same level. This difference is most impactful for users who frequently need to quickly top up their battery.
❓ Does either phone support expandable storage via microSD card?
While not explicitly stated in the provided data, both Oppo and Samsung typically include microSD card slots in their A-series devices. It's highly probable that both the A77 and A23 5G support expandable storage, allowing users to increase their storage capacity beyond the internal options.