vivo Y55s (2023) vs Oppo A78: A Detailed Comparison
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🏆 Quick Verdict
The Oppo A78 edges out the vivo Y55s (2023) thanks to its significantly faster charging and potentially slightly better camera performance. While both share the same chipset, the A78's charging speed alone makes it a more practical choice for many users.
| PHONES | ||
|---|---|---|
| Phone Names | vivo Y55s (2023) | Oppo A78 |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 39, 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, 78 SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
| - | IP54 | |
| Launch | ||
|---|---|---|
| Announced | 2023, January 21 | 2023, January 07 |
| Status | Available. Released 2023, January 21 | Available. Released 2023, January 07 |
| Body | ||
|---|---|---|
| Build | Glass front, plastic frame, plastic back | - |
| Dimensions | 164 x 75.9 x 8.3 mm (6.46 x 2.99 x 0.33 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) |
| Display | ||
|---|---|---|
| Protection | - | Panda glass |
| Resolution | 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) | 720 x 1612 pixels, 20:9 ratio (~269 ppi density) |
| Size | 6.58 inches, 104.3 cm2 (~83.8% screen-to-body ratio) | 6.56 inches, 103.4 cm2 (~84.0% screen-to-body ratio) |
| Type | IPS LCD | IPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 700 (7 nm) | Mediatek Dimensity 700 (7 nm) |
| GPU | Mali-G57 MC2 | Mali-G57 MC2 |
| OS | Android 12, Funtouch 12 | Android 12, upgradable to Android 14, ColorOS 14 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC | microSDXC |
| Internal | 128GB 4GB RAM, 128GB 6GB RAM | 128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM |
| - | UFS 2.2 | |
| Main Camera | ||
|---|---|---|
| Dual | - | 50 MP, f/1.8, 27mm (wide), PDAF Auxiliary lens |
| Features | Dual-LED flash, HDR, panorama | LED flash, HDR, panorama |
| Single | 8 MP, f/1.8, (wide) | 8 MP, f/2.0, 27mm (wide) |
| Triple | 50 MP, f/1.8, 26mm (wide), PDAF 2 MP (macro) Auxiliary lens | - |
| Video | 1080p@30fps, gyro-EIS | 1080p@30fps |
| Selfie camera | ||
|---|---|---|
| Single | 8 MP, f/1.8, (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 | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.1, A2DP, LE | 5.3, A2DP, LE, aptX |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS, QZSS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | FM radio | No |
| USB | USB Type-C, 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, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 18W wired | 33W wired, PD, 52% in 30 min, 100% in 67 min |
| Type | 5000 mAh | Li-Po 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Blue | Glowing Black, Glowing Purple |
| Models | - | CPH2483, CPH2495 |
| Price | About 250 EUR | € 188.99 / $ 102.92 / ₹ 16,290 |
vivo Y55s (2023)
- Clean Software Experience
- Reliable Performance
- Decent Battery Life
- Slow Charging
- Potentially Less Refined Camera
Oppo A78
- Fast Charging (33W)
- Potentially Better Camera
- Slightly Brighter Display (Likely)
- Oppo's ColorOS can be polarizing
- Performance similar to Y55s
Display Comparison
Both phones likely feature similar 6.5-inch LCD displays with a 90Hz refresh rate, offering smooth scrolling and visuals. Expect comparable resolution and color accuracy, though Oppo might have slightly better calibration. The A78 may have a slightly brighter display.
Camera Comparison
While both likely feature a 50MP main camera, Oppo often has a slight edge in camera processing and software optimization. The A78 might offer better low-light performance and more versatile camera features. Expect similar selfie camera capabilities.
Performance
Sharing the same Mediatek Dimensity 700 chipset and CPU configuration, expect similar performance in everyday tasks and moderate gaming. Neither phone is a powerhouse, but both are capable of handling most apps without significant lag. RAM and storage configurations will be key differentiators here, with the A78 potentially offering more options.
Battery Life
This is where the Oppo A78 shines. Its 33W fast charging is a significant advantage over the vivo Y55s' 18W charging. While both likely have a similar 5000mAh battery capacity, the A78 will charge much faster, reducing downtime.
Buying Guide
The vivo Y55s (2023) is ideal for users prioritizing a clean software experience and a reliable, if not groundbreaking, performance. The Oppo A78 is a better fit for those who value fast charging and a potentially more refined camera system, even within the budget segment.