Oppo A78 4G vs Oppo K9
Side-by-side specs and price comparison for buyers in Algeria.
Oppo A78 4G
Price coming soon
Oppo K9
Price coming soon
Quick Verdict
Who wins each category, side by side.
Better price
Even
Faster chip
Even
Bigger battery
Oppo A78 4G
Faster charging
Oppo A78 4G
Higher-resolution camera
Oppo K9
Better display
Even
Lighter body
Oppo K9
Best value for money
Even
Full specs comparison
Display
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Size (inches) | 6.43 | 6.43 |
| Panel Type | AMOLED | AMOLED |
| Resolution Height | 2400 | 2400 |
| Resolution Width | 1080 | 1080 |
| Refresh Rate | 90 | 90 |
| Peak Brightness | 430 | 750 |
| PPI | 409 | 409 |
| Glass Type | Corning Gorilla Glass 5 | — |
| Screen-to-body | 85.2 | 85.5 |
Platform
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| CPU | Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver) | Octa-core (1x2.8 GHz Kryo 475 Prime & 1x2.4 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) |
| GPU | Adreno 610 | Adreno 620 |
| Chipset Name | Snapdragon 680 4G | Snapdragon 768G 5G |
| Process (nm) | 6 | 7 |
| OS Name | Android | Android |
| UI Skin | ColorOS 13.1 | ColorOS 11.1 |
| OS Version | 13 | 11 |
Memory
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Card Slot | microSDXC | No |
| Variants | 128GB 8GB RAM, 256GB 8GB RAM | 128GB 8GB RAM, 256GB 8GB RAM |
Main Camera
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps; gyro-EIS |
| Features | LED flash, HDR, panorama | LED flash, HDR, panorama |
| Count | 2 | 3 |
| Depth | 2 MP, f/2.4, (depth) | — |
| Macro | — | 2 MP, f/2.4, (macro) |
| ultrawide | — | 8 MP, f/2.2, (ultrawide) |
| Wide | 50 MP, f/1.8, (wide) | 64 MP, f/1.7, (wide) |
Selfie Camera
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Video | 1080p@30fps | 1080p@30fps |
| Count | 1 | 1 |
| Lens | 8 MP, f/2, (wide) | 32 MP, f/2.4, (wide) |
Battery
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Capacity (mAh) | 5000 | 4300 |
| Chemistry | Li-Po | Li-Po |
| Wired Charging (W) | 67 | 65 |
Body
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Height (mm) | 160 | 159.1 |
| Thickness (mm) | 7.9 | 7.9 |
| Weight (g) | 180 | 172 |
| Width (mm) | 73.2 | 73.4 |
Launch
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Announced | 2023, July 10 | 2021, May 06 |
| Status | Available. Released 2023, July 10 | Available. Released 2021, May 11 |
Network
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| 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 | LTE | 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41 |
| 5G Bands | — | 1, 3, 28, 41, 77, 78 SA/NSA |
| Speed | HSPA, LTE | HSPA, LTE, 5G |
| Technology | GSM, HSPA, LTE | GSM, CDMA, HSPA, CDMA2000, LTE, 5G |
Connectivity
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Bluetooth | 5 | 5 |
| NFC | Yes (market/region dependent) | No |
| Positioning | GPS, GALILEO, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS, QZSS |
| Radio | No | No |
| USB Type | Type-C | Type-C |
| USB Version | 2.0 | 2.0 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
Sound
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| 3.5mm Jack | Yes | Yes |
| Loudspeaker | Yes, with stereo speakers | Yes |
Features
| Spec | Oppo A78 4G | Oppo K9 |
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
Buying advice for Algeria
Both Oppo A78 4G and Oppo K9 are sold in Algeria, but they fit different priorities.
Oppo A78 4G packs a 5000 mAh battery, which translates to longer screen-on time when you are away from a charger.
Oppo K9 reaches a higher main-sensor resolution at 64 MP, which helps with crops and lower-light photos.
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