Oppo A57s vs Oppo A78: A Head-to-Head Budget Battle

Oppo's A-series consistently delivers affordable smartphones packed with features. The A57s and A78 are two contenders vying for your attention in the budget segment. But which one offers the best value for your money? Let's dive into a comprehensive comparison.

Phones Images

🏆 Quick Verdict

The Oppo A78 emerges as the clear winner. Its Dimensity 700 chipset provides significantly better performance than the A57s' Helio G35. While both offer 33W charging, the A78's faster charging speeds and overall improved specs make it the superior choice for most users.

PHONES
Phone Names	Oppo A57s	Oppo A78

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100	HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 3, 5, 7, 8, 20, 28, 38, 40, 41	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66
5G bands	-	1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA
Speed	HSPA, LTE	HSPA, LTE, 5G
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE / 5G
	-	IP54

Launch
Announced	2022, August 31	2023, January 07
Status	Available. Released 2022, September 12	Available. Released 2023, January 07

Body
Build	Glass front (Panda Glass), plastic frame, plastic back	-
Dimensions	163.8 x 75 x 8 mm (6.45 x 2.95 x 0.31 in)	163.8 x 75.1 x 8 mm (6.45 x 2.96 x 0.31 in)
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	187 g (6.60 oz)	188 g (6.63 oz)
	IP5X (dust), IPX4 (water) resistance	-

Display
Protection	Panda Glass	Panda glass
Resolution	720 x 1612 pixels, 20:9 ratio (~269 ppi density)	720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Size	6.56 inches, 103.4 cm2 (~84.2% screen-to-body ratio)	6.56 inches, 103.4 cm2 (~84.0% screen-to-body ratio)
Type	IPS LCD, 480 nits (typ), 600 nits (HBM)	IPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM)

Platform
CPU	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Chipset	Mediatek MT6765G Helio G35 (12 nm)	Mediatek Dimensity 700 (7 nm)
GPU	PowerVR GE8320	Mali-G57 MC2
OS	Android 12, ColorOS 12.1	Android 12, upgradable to Android 14, ColorOS 14

Memory
Card slot	microSDXC	microSDXC
Internal	64GB 4GB RAM, 128GB 4GB RAM	128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
	eMMC 5.1	UFS 2.2

Main Camera
Dual	50 MP, f/1.8, 27mm (wide), PDAF Auxiliary lens	50 MP, f/1.8, 27mm (wide), PDAF Auxiliary lens
Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Single	8 MP, f/2.0, 26mm (wide)	8 MP, f/2.0, 27mm (wide)
Video	1080p@30fps	1080p@30fps

Selfie camera
Features	Panorama	-
Single	8 MP, f/2.0, 26mm (wide)	8 MP, f/2.0, 27mm (wide)
Video	1080p@30fps	1080p@30fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes, with stereo speakers	Yes, with stereo speakers

Comms
Bluetooth	5.3, A2DP, LE, aptX HD	5.3, A2DP, LE, aptX
NFC	Yes	Yes
Positioning	GPS, GLONASS, BDS, GALILEO, QZSS	GPS, GALILEO, GLONASS, BDS, QZSS
Radio	No	No
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac, dual-band

Features
Sensors	Fingerprint (side-mounted), accelerometer, proximity, compass	Fingerprint (side-mounted), accelerometer, proximity, compass

Battery
Charging	33W wired, 100% in 69 min	33W wired, PD, 52% in 30 min, 100% in 67 min
Type	Li-Po 5000 mAh	Li-Po 5000 mAh

Misc
Colors	Starry Black, Sky Blue	Glowing Black, Glowing Purple
Models	CPH2385	CPH2483, CPH2495
Price	-	€ 188.99 / $ 102.92 / ₹ 16,290

Oppo A57s

Very affordable
Decent battery life
Reliable for basic tasks

Slow performance
Basic camera
Outdated chipset
Slower charging

Oppo A78

Faster performance
Better camera system
Modern chipset
Faster charging
Slightly better display (potentially)

Slightly more expensive than A57s
Still a budget phone - don't expect flagship features

Display Comparison

Both phones feature a 6.5-inch display, likely with an LCD panel and a resolution around 720 x 1600 pixels. The A78 *might* have slightly better color accuracy and brightness due to potentially more advanced panel technology, but this is difficult to confirm without detailed reviews. Expect similar viewing experiences overall.

Camera Comparison

The A78 likely boasts a more versatile camera system. While both likely have a primary 50MP sensor, the A78 probably includes additional lenses (ultrawide, macro, depth) and better image processing capabilities. Expect improved low-light performance and overall image quality on the A78. The A57s camera is adequate for basic snapshots.

Performance

This is where the A78 shines. The Mediatek Dimensity 700 (7nm) is a substantial upgrade over the Helio G35 (12nm). The Dimensity 700's Cortex-A76 cores offer significantly better CPU performance, making the A78 noticeably faster for apps, games, and multitasking. The A57s will feel sluggish by comparison.

Battery Life

Both phones have a 5000mAh battery, offering excellent all-day battery life. The A78's 33W charging is slightly faster, reaching 52% in 30 minutes compared to the A57s' 100% in 69 minutes. This difference, while not massive, contributes to the A78's overall advantage.

Buying Guide

Who should buy the Oppo A57s? Those on an extremely tight budget who prioritize a simple, reliable phone for basic tasks. Who should buy the Oppo A78? Anyone seeking a smoother experience, better performance for gaming and multitasking, and a more modern feature set without breaking the bank.

Frequently Asked Questions

❓ Is the Oppo A57s good for gaming?

The Oppo A57s is not ideal for gaming. Its Helio G35 chipset struggles with demanding games, resulting in low frame rates and lag.

❓ Which Oppo phone has better battery life?

Both phones have a 5000mAh battery and offer excellent all-day battery life. The A78 charges slightly faster.

❓ Is the Oppo A78 worth the extra money?

Yes, the Oppo A78 is generally worth the extra money. The performance improvements and better camera system make it a significantly better overall experience.