Infinix Hot 20 vs Oppo A78 4G: A Deep Dive into Budget Smartphone Performance

The sub-$200 smartphone market is fiercely competitive. The Infinix Hot 20 and Oppo A78 4G represent two distinct approaches to winning over budget-conscious consumers: raw processing power with the Infinix, and efficiency and rapid charging with the Oppo. This comparison will dissect their key differences to help you choose the right device.
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🏆 Quick Verdict

For the average user prioritizing all-day battery life and incredibly fast charging, the Oppo A78 4G is the clear winner. Its Snapdragon 680, while not a performance king, offers a more efficient experience, and the 67W charging is a game-changer. However, gamers on a tight budget might find the Infinix Hot 20's Helio G85 a more appealing option.

PHONES
Phone Names Infinix Hot 20 Oppo A78 4G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 20, 28A, 28, 38, 40, 41LTE
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 1, 3, 5, 8, 38, 40, 41-
Launch
Announced2022, October 132023, July 10
StatusAvailable. Released 2022, October 13Available. Released 2023, July 10
Body
BuildGlass front, plastic frame, plastic back-
Dimensions170.7 x 77.4 x 8.3 mm (6.72 x 3.05 x 0.33 in)160 x 73.2 x 7.9 mm (6.30 x 2.88 x 0.31 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight198 g (6.98 oz)180 g (6.35 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution720 x 1640 pixels (~263 ppi density)1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
Size6.82 inches, 110.5 cm2 (~83.6% screen-to-body ratio)6.43 inches, 99.8 cm2 (~85.2% screen-to-body ratio)
TypeIPS LCD, 90HzAMOLED, 90Hz, 430 nits
Platform
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
ChipsetMediatek MT6769Z Helio G85 (12 nm)Qualcomm SM6225 Snapdragon 680 4G (6 nm)
GPUMali-G52 MC2Adreno 610
OSAndroid 12, XOS 12Android 13, ColorOS 13.1
Memory
Card slotmicroSDXC (dedicated slot)microSDXC
Internal128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM128GB 8GB RAM, 256GB 8GB RAM
Main Camera
Dual50 MP, f/1.6, (wide), PDAF Auxiliary lens50 MP, f/1.8, (wide), PDAF Auxiliary lens
FeaturesQuad-LED flash, HDR, panoramaLED flash, HDR, panorama
Single8 MP, f/2.0, (wide)-
Video1080p@30fps1080p@30fps
Selfie camera
FeaturesDual-LED flash-
Single8 MP, f/2.0, (wide)8 MP, f/2.0, (wide)
Video1080p@30fps1080p@30fps
Sound
3.5mm jack Yes-
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYes (except 128/4 option)Yes (market/region dependent)
PositioningGPSGPS, GALILEO, GLONASS, BDS
RadioFM radioNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-Fi 802.11 a/b/g/n/ac, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging18W wired 5W reverse wired67W wired, PD, 76% in 30 min
Type5000 mAhLi-Po 5000 mAh
Misc
ColorsSonic Black, Legend White, Tempo Blue, Fantasy PurpleMist Black, Aqua Green
ModelsX6826, X6826B, X6826CCPH2565
PriceAbout 190 EURAbout 200 EUR

Infinix Hot 20

  • Potentially higher peak performance for gaming due to the Helio G85's Cortex-A75 cores.
  • More affordable price point (likely).
  • Reverse wired charging for emergency top-ups.

  • Less efficient 12nm chipset leads to potentially higher heat and lower battery life.
  • Slower 18W charging.
  • Potential for more noticeable throttling during extended gaming sessions.

Oppo A78 4G

  • Significantly faster 67W charging with PD support.
  • More efficient 6nm Snapdragon 680 chipset for better battery life.
  • Likely better thermal management due to the 6nm process.

  • Potentially lower peak performance compared to the Infinix Hot 20 in short bursts.
  • May be slightly more expensive.
  • No reverse wired charging.

Display Comparison

Neither device boasts a standout display. While specific display specs (resolution, panel type) are missing, the focus here is on performance. The lack of high refresh rates on either device suggests a focus on power conservation. The real differentiator will be color accuracy and peak brightness, which are not provided in the context data, but given the price point, neither is expected to excel.

Camera Comparison

Without detailed camera specifications, a direct comparison is limited. However, the market segment suggests both phones will rely heavily on software processing. The absence of OIS on either device indicates a reliance on computational photography. The focus should be on the main sensor's megapixel count and aperture, which are not provided. The inclusion of a 2MP macro lens on either device is likely a marketing tactic, offering minimal real-world benefit.

Performance

The core difference lies in the chipsets. The Infinix Hot 20 utilizes the Mediatek Helio G85, built on a 12nm process, featuring an octa-core configuration with two Cortex-A75 cores clocked at 2.0 GHz for performance and six Cortex-A55 cores for efficiency. The Oppo A78 4G, however, employs the Qualcomm Snapdragon 680, fabricated on a more efficient 6nm process. This smaller node translates to better thermal management and power efficiency. While the Helio G85's Cortex-A75 cores offer a theoretical performance advantage in bursty tasks, the Snapdragon 680’s Kryo 265 Gold cores (clocked higher at 2.4 GHz) and the 6nm process provide a more sustained and balanced experience. The Snapdragon 680 is likely to exhibit less throttling under prolonged load.

Battery Life

The Oppo A78 4G’s 67W charging is the standout feature. The ability to reach 76% charge in just 30 minutes is a significant advantage over the Infinix Hot 20’s 18W charging. While battery capacity isn’t specified, the Snapdragon 680’s superior efficiency means the Oppo A78 4G will likely offer longer real-world battery life, even with a potentially smaller battery. The Infinix Hot 20’s 18W charging will require considerably more time to fully replenish the battery.

Buying Guide

Buy the Infinix Hot 20 if you need a phone primarily for casual gaming and demand the most processing power for the price. Its Helio G85 chipset offers a performance edge in demanding apps. Buy the Oppo A78 4G if you prioritize battery life, fast charging, and a smoother, more efficient everyday experience. The Snapdragon 680 and 67W charging make it ideal for users who are constantly on the go.

Frequently Asked Questions

❓ Will the Snapdragon 680 in the Oppo A78 4G struggle with demanding games like PUBG or Call of Duty?
While the Snapdragon 680 isn't a flagship chipset, it's capable of running PUBG and Call of Duty at medium settings. The 6nm process and improved thermal management will prevent significant throttling, providing a more consistent gaming experience than the Infinix Hot 20 might offer during prolonged sessions. Expect playable frame rates, but don't anticipate ultra-high settings.
❓ How much faster is the 67W charging on the Oppo A78 4G compared to the 18W charging on the Infinix Hot 20 in real-world use?
The difference is substantial. The Oppo A78 4G can reach 76% charge in 30 minutes, while the Infinix Hot 20 will likely take well over an hour to achieve a similar charge level. This means you can quickly top up the Oppo A78 4G during short breaks, making it ideal for users who are always on the move. The 18W charging on the Infinix Hot 20 is adequate, but significantly slower.
❓ Does the Helio G85 in the Infinix Hot 20 get noticeably hot during extended gaming sessions?
The 12nm process of the Helio G85 is less efficient than the 6nm process of the Snapdragon 680. This means the Infinix Hot 20 is more likely to experience thermal throttling during prolonged gaming. While it won't necessarily become uncomfortably hot, you may notice a drop in performance after extended play.