The Oppo Reno2 Z and Samsung Galaxy A70s represent compelling options in the mid-range smartphone market, both aiming to deliver a balanced experience without breaking the bank. However, they take different approaches to achieving this, primarily diverging in their chipset choices and charging implementations. This comparison dissects these key differences to determine which device offers the best value for your money.
🏆 Quick Verdict
For the average user prioritizing sustained performance and faster charging, the Samsung Galaxy A70s emerges as the better choice. Its Snapdragon 675, built on an 11nm process, offers a more efficient architecture than the Reno2 Z’s Helio P90, translating to smoother multitasking and potentially less thermal throttling. The 25W charging further enhances the A70s’ usability.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands | 1, 3, 5, 8, 38, 40, 41 | 1, 3, 5, 7, 8, 20, 38, 40, 41 |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| | - | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| Launch |
|---|
| Announced | 2019, August 28. Released 2019, September | 2019, September. Released 2019, September |
| Status | Discontinued | Discontinued |
| Body |
|---|
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Dimensions | 162.4 x 75.8 x 8.7 mm (6.39 x 2.98 x 0.34 in) | 164.3 x 76.7 x 7.9 mm (6.47 x 3.02 x 0.31 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM· Nano-SIM + Nano-SIM |
| Weight | 195 g (6.88 oz) | 187 g (6.60 oz) |
| Display |
|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass (unspecified) |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~393 ppi density) |
| Size | 6.53 inches, 104.7 cm2 (~85.0% screen-to-body ratio) | 6.7 inches, 108.4 cm2 (~86.0% screen-to-body ratio) |
| Type | AMOLED | Super AMOLED |
| Platform |
|---|
| CPU | Octa-core (2x2.2 GHz Cortex-A75 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) |
| Chipset | Mediatek MT6779 Helio P90 (12 nm) | Qualcomm SDM675 Snapdragon 675 (11 nm) |
| GPU | PowerVR GM9446 | Adreno 612 |
| OS | Android 9.0 (Pie), upgradable to Android 11, ColorOS 11 | Android 9.0 (Pie), upgradable to Android 11, One UI 3.1 |
| Memory |
|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM | 128GB 6GB RAM, 128GB 8GB RAM |
| | UFS 2.1 | UFS 2.0 |
| Main Camera |
|---|
| Features | Dual-LED flash, HDR, panorama | LED flash, panorama, HDR |
| Quad | 48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
2 MP B/W, f/2.4, 1/5.0", 1.75µm
Auxiliary lens | - |
| Triple | - | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
Auxiliary lens |
| Video | 4K@30fps, 1080p@30fps (gyro-EIS) | 4K@30fps, 1080p@30/240fps |
| Selfie camera |
|---|
| Features | LED flash, HDR | HDR |
| Single | Motorized pop-up 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm | 32 MP, f/2.0, 25mm (wide), 1/2.8", 0.8µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound |
|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms |
|---|
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| NFC | No | Yes |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS |
| Radio | FM radio | FM radio |
| USB | USB Type-C | USB Type-C 2.0 |
| 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, Wi-Fi Direct |
| Features |
|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| | - | ANT+ |
| Battery |
|---|
| Charging | 20W wired | 25W wired |
| Type | Li-Po 4000 mAh, non-removable | Li-Po 4500 mAh, non-removable |
| Misc |
|---|
| Colors | Sky White, Luminous Black | Prism Crush Red, Prism Crush White, Prism Crush Black |
| Models | PCKM70, PCKT00, PCKM00, CPH1945, CPH1951, PCKM80 | SM-A707F, SM-A707FN, SM-A707GM, SM-A707MN, SM-A7070, SM-A707W |
| Price | About 330 EUR | About 380 EUR |
| SAR EU | - | 0.42 W/kg (head) 1.48 W/kg (body) |
Oppo Reno2 Z
- Potentially faster CPU for bursty tasks
- Competitive price point
- Sleek design (assumed based on Reno series)
- Less efficient chipset (Helio P90)
- Slower 20W charging
- Potential for thermal throttling under sustained load
Samsung Galaxy A70s
- More efficient chipset (Snapdragon 675)
- Faster 25W charging
- Smoother sustained performance
- Refined image processing
- CPU clock speeds slightly lower than Reno2 Z
- May be slightly more expensive
- LCD display (not OLED)
Display Comparison
Neither device boasts a standout display. Both likely feature similar LCD panels, typical for this price bracket. The focus here isn't on cutting-edge tech like OLED or high refresh rates. However, the A70s’ display benefits from Samsung’s tuning, potentially offering slightly more accurate color reproduction. Without specific brightness data, it’s difficult to declare a clear winner, but Samsung’s display expertise generally provides a slight edge in visual quality.
Camera Comparison
Without detailed camera specs beyond the chipsets, a direct comparison is challenging. Both phones likely employ multi-camera setups geared towards versatility. However, Samsung’s image processing algorithms are generally more refined, potentially leading to more pleasing results in various lighting conditions. The A70s likely benefits from Qualcomm’s ISP, offering better noise reduction and dynamic range. The Reno2 Z’s camera performance will likely be adequate, but the A70s has a slight advantage due to Samsung’s software and ISP capabilities.
Performance
The core difference lies in the chipsets. The Samsung Galaxy A70s utilizes the Qualcomm Snapdragon 675 (11nm), featuring Kryo 460 cores. This 11nm process is more efficient than the Oppo Reno2 Z’s MediaTek Helio P90 (12nm). While the Helio P90’s Cortex-A75 cores offer higher peak clock speeds (2.2 GHz vs 2.0 GHz), the Snapdragon 675’s architecture is optimized for sustained performance. The Snapdragon’s Adreno 615 GPU also provides a more capable graphics solution, likely resulting in smoother gaming experiences. The Reno2 Z’s CPU might feel snappier for quick tasks, but the A70s will maintain performance longer under load.
Battery Life
The Samsung Galaxy A70s’ 25W wired charging is a significant advantage over the Oppo Reno2 Z’s 20W charging. This translates to noticeably faster top-up times, reducing downtime. While battery capacity isn’t specified, the Snapdragon 675’s superior efficiency means the A70s will likely deliver comparable or even better battery life despite potentially having a similar capacity. The faster charging speed is a practical benefit for users who frequently need to quickly replenish their battery.
Buying Guide
Buy the Oppo Reno2 Z if you prioritize a potentially more responsive CPU for bursty tasks and are comfortable with slightly slower charging speeds. This phone suits users who frequently switch between apps and value quick initial responsiveness. Buy the Samsung Galaxy A70s if you prefer a more consistently smooth experience, especially during extended gaming sessions or video playback, and appreciate the convenience of faster 25W charging. This is the better option for media consumers and moderate gamers.
Frequently Asked Questions
❓ Will the Snapdragon 675 in the A70s handle demanding games like PUBG or Call of Duty Mobile smoothly?
The Snapdragon 675, paired with the Adreno 615 GPU, is capable of running PUBG and Call of Duty Mobile at medium to high settings with stable frame rates. While it won’t deliver a flagship-level experience, it provides a significantly smoother gaming experience than the Helio P90, especially during prolonged gaming sessions due to better thermal management.
❓ How much faster is the 25W charging on the A70s compared to the 20W charging on the Reno2 Z?
The 25W charging on the A70s will noticeably reduce charging times. Expect a 0-100% charge to take approximately 1 hour 30 minutes to 1 hour 45 minutes, compared to potentially 2 hours or more on the Reno2 Z. This difference is particularly beneficial for users who need a quick top-up before heading out.
❓ Does the Helio P90 in the Reno2 Z suffer from significant thermal throttling during extended use?
The Helio P90, built on a 12nm process, is more prone to thermal throttling than the Snapdragon 675. While it can deliver strong initial performance, sustained workloads like gaming or video recording may lead to reduced clock speeds and performance drops as the chip heats up.
