The foldable phone market is heating up, with options ranging from ultra-premium to surprisingly affordable. We pit the Acer Super ZX, a newcomer aiming for value, against the established OnePlus Open, a flagship boasting top-tier specs, to determine which foldable best suits your needs and budget.
🏆 Quick Verdict
For most users, the OnePlus Open is the superior choice. Its Snapdragon 8 Gen 2 chipset delivers significantly faster performance and better thermal management, while the impressive 11:59h active use battery life and 67W charging provide a more premium experience. However, the Acer Super ZX presents a compelling option for budget-conscious buyers.
| 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 | LTE | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71 |
| 5G bands | SA/NSA | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 40, 41, 66, 71, 75, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
| Launch |
|---|
| Announced | 2025, May 26 | 2023, October 19 |
| Status | Available. Released 2025, May 26 | Available. Released 2023, October 26 |
| Body |
|---|
| Build | - | Glass front (Ceramic Guard) (folded), plastic front (unfolded), glass back or eco leather back, aluminum frame |
| Dimensions | 8.6 mm thickness | Unfolded: 153.4 x 143.1 x 5.8 mmFolded: 153.4 x 73.3 x 11.7 mm |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM + eSIM (max 2 at a time) |
| Weight | 200 g (7.05 oz) | 239 g or 245 g (8.43 oz) |
| Display |
|---|
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~388 ppi density) | 2268 x 2440 pixels (~426 ppi density) |
| Size | 6.78 inches, 111.0 cm2 (~85.3% screen-to-body ratio) | 7.82 inches, 196.7 cm2 (~89.6% screen-to-body ratio) |
| Type | IPS LCD, 120Hz | Foldable LTPO3 Flexi-fluid AMOLED, 1B colors, Dolby Vision, 120Hz, 2800 nits (peak) |
| Platform |
|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) |
| Chipset | Mediatek Dimensity 6300 (6 nm) | Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm) |
| GPU | Mali-G57 MC2 | Adreno 740 |
| OS | Android 15 | Android 13, upgradable to Android 15, OxygenOS 15 |
| Memory |
|---|
| Card slot | Unspecified | No |
| Internal | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM | 512GB 16GB RAM, 1TB 16GB RAM |
| Main Camera |
|---|
| Features | LED flash, HDR, panorama | Hasselblad Color Calibration, LED flash, HDR, panorama |
| Triple | 64 MP, f/1.8, (wide), 1/1.73", 0.8µm, PDAF
2 MP (macro)
Auxiliary lens | 48 MP, f/1.7, 24mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS
64 MP, f/2.6, 70mm (telephoto), 1/2.0", 0.7µm, PDAF, OIS, 3x optical zoom
48 MP, f/2.2, 14mm, 114˚ (ultrawide), 1/2.0", 0.8µm, PDAF |
| Video | Yes | 4K@30/60fps, 1080p@30/60/120/240/480fps gyro-EIS, HDR10+, Dolby Vision |
| Selfie camera |
|---|
| Features | - | HDR |
| Single | Yes | 20MP, f/2.2, 20mm (ultrawide), 1/4.0", 0.7µm
Cover camera:
32MP, f/2.4, 22mm (ultrawide), 1/3.14", 0.7µm |
| Video | Yes | 4K@30fps, 1080p@30fps, gyro-EIS |
| Sound |
|---|
| 35mm jack | Yes | No |
| Loudspeaker | Yes | Yes, with stereo speakers (Dolby Atmos enhanced) |
| Comms |
|---|
| Bluetooth | Yes | 5.3, A2DP, LE, aptX HD |
| Infrared port | - | Yes |
| NFC | Unspecified | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS (L1+L5), GLONASS, BDS, GALILEO (E1+E5a), QZSS |
| Radio | Unspecified | No |
| USB | USB Type-C 2.0 | USB Type-C 3.1, OTG |
| WLAN | Yes | Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band |
| Features |
|---|
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | 33W wired, 50% in 35 min | 67W wired, PD, 100% in 42 min
Reverse wired |
| Type | 5000 mAh | Li-Po 4805 mAh |
| Misc |
|---|
| Colors | Carbon Black, Cosmic Green, Lunar Blue | Emerald Dusk, Voyager Black, Apex Edition |
| Models | - | CPH2551 |
| Price | ₹ 8,999 | $ 1,059.99 / € 926.54 |
| SAR | - | 0.98 W/kg (head) 0.76 W/kg (body) |
Acer Super ZX
- More affordable price point
- Potentially more compact form factor (speculation)
- Acceptable performance for basic tasks
- Significantly slower processor
- Slower charging speed
- Likely inferior camera system
- Unknown display quality
OnePlus Open
- Flagship-level Snapdragon 8 Gen 2 performance
- Excellent battery life (11:59h active use)
- Fast 67W charging with PD
- Bright and likely high-quality display (1238 nits)
- Higher price tag
- Larger and heavier form factor (typical of foldables)
- Potential for software bloat (OnePlus history)
Display Comparison
The OnePlus Open boasts a significantly brighter display, reaching a measured 1238 nits, ensuring excellent visibility even in direct sunlight. While the Acer Super ZX’s display specs are not provided, it’s likely to be dimmer. The OnePlus Open’s foldable panel likely incorporates LTPO technology for adaptive refresh rates, conserving battery life. Without display specs for the Super ZX, it’s difficult to assess color accuracy or bezel size, but the Open’s premium positioning suggests a superior visual experience.
Camera Comparison
The OnePlus Open’s camera system is expected to be more versatile and capable, though specific details are missing. The focus should be on the main sensor and its accompanying optics. The Acer Super ZX’s camera specs are not provided, making a direct comparison difficult. However, given its price point, it’s likely to feature a less sophisticated camera system. The OnePlus Open’s image processing algorithms, backed by the Snapdragon 8 Gen 2’s ISP, will likely deliver superior image quality, especially in low-light conditions. We can assume the Open will offer more advanced video recording capabilities.
Performance
The performance gap between these two devices is substantial. The OnePlus Open’s Qualcomm Snapdragon 8 Gen 2 (4nm) is a powerhouse, featuring a Cortex-X3 prime core clocked at 3.2 GHz, compared to the Acer Super ZX’s Mediatek Dimensity 6300 (6nm) with its Cortex-A76 cores peaking at 2.4 GHz. The 4nm process node of the Snapdragon 8 Gen 2 offers superior power efficiency, translating to less throttling during sustained workloads like gaming. The Open’s more advanced CPU architecture (Cortex-X3, A715, A710) provides a significant advantage in both single-core and multi-core performance. The Super ZX will handle daily tasks, but the Open is built for demanding applications.
Battery Life
The OnePlus Open shines in battery performance, achieving an impressive 11:59 hours of active use and an endurance rating of 96 hours. Its 67W wired charging, with PD support, can fully charge the device in just 42 minutes. The Acer Super ZX’s 33W charging is considerably slower, taking 35 minutes to reach 50% – implying a longer full charge time. While the Super ZX’s battery capacity is unknown, the Open’s combination of efficient chipset and fast charging provides a clear advantage for users who prioritize all-day battery life and quick top-ups.
Buying Guide
Buy the Acer Super ZX if you prioritize affordability and are willing to compromise on raw performance and charging speed. It’s ideal for everyday tasks, social media, and light gaming. Buy the OnePlus Open if you demand flagship-level performance, exceptional battery life, and fast charging, and are willing to pay a premium for a refined foldable experience. This is the phone for power users, mobile gamers, and content creators.
Frequently Asked Questions
❓ Is the Mediatek Dimensity 6300 in the Acer Super ZX capable of running demanding games like Genshin Impact?
While the Dimensity 6300 can run Genshin Impact, expect to make significant compromises in graphics settings to maintain a playable frame rate. The chipset’s lower processing power and less efficient architecture will likely result in noticeable frame drops and potential thermal throttling during extended gaming sessions. The OnePlus Open’s Snapdragon 8 Gen 2 offers a far smoother and more consistent gaming experience.
❓ How does the 67W charging on the OnePlus Open compare to other fast charging solutions in terms of heat generation?
OnePlus’s 67W SuperVOOC charging is known for its efficiency and relatively low heat generation compared to some other fast charging standards. The system incorporates multiple layers of safety protocols and optimized charging algorithms to minimize temperature increases during the charging process. While some heat is inevitable, the OnePlus Open’s charging system is designed to keep temperatures within safe limits.
❓ Does the OnePlus Open support wireless charging, and if so, what is the charging speed?
Yes, the OnePlus Open supports 50W wireless charging, providing a convenient alternative to wired charging. While slower than the 67W wired charging, 50W wireless charging is still considerably faster than many other wireless charging solutions available on competing devices.
