The vivo S1 Pro and Realme X2 Pro represent distinct approaches to the smartphone market. The S1 Pro aimed for a balance of features at a competitive price point, while the X2 Pro, even with its age, brought near-flagship performance to a wider audience. This comparison dissects their key differences, focusing on where each phone excels and who will benefit most from its strengths.
🏆 Quick Verdict
For the average user prioritizing everyday tasks and casual gaming, the vivo S1 Pro offers a solid experience. However, the Realme X2 Pro is the clear winner for power users, gamers, and those demanding faster performance and significantly quicker charging, thanks to its Snapdragon 855+ chipset and 50W SuperVOOC charging.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - China |
| 4G bands | 1, 3, 5, 28, 38, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41 - China |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / CDMA / HSPA / EVDO / LTE |
| | - | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41 - EMEA |
| Launch |
|---|
| Announced | 2019, November 19. Released 2019, November | 2019, October 15. Released 2019, October |
| Status | Discontinued | Discontinued |
| Body |
|---|
| Build | Glass front, glass back, aluminum frame | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions | 159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in) | 161 x 75.7 x 8.7 mm (6.34 x 2.98 x 0.34 in) |
| SIM | · Nano-SIM· Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 186.7 g (6.60 oz) | 199 g (7.02 oz) |
| Display |
|---|
| Protection | - | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~402 ppi density) |
| Size | 6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio) | 6.5 inches, 103.5 cm2 (~84.9% screen-to-body ratio) |
| Type | Super AMOLED | Super AMOLED, 90Hz, HDR10+, 1000 nits (peak) |
| Platform |
|---|
| CPU | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) | Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | Qualcomm SM8150 Snapdragon 855+ (7 nm) |
| GPU | Adreno 610 | Adreno 640 (700 MHz) |
| OS | Android 9.0 (Pie), Funtouch 9.2 | Android 9.0 (Pie), upgradable to Android 11, Realme UI 2.0 |
| Memory |
|---|
| Card slot | microSDXC (uses shared SIM slot) | No |
| Internal | 128GB 8GB RAM | 64GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| | - | 64GB UFS 2.1, 128/256GB UFS 3.0 |
| Main Camera |
|---|
| Features | LED flash, HDR, panorama | Dual-LED flash, HDR, panorama |
| Quad | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
2 MP (macro)
Auxiliary lens | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
13 MP, f/2.5, 52mm (telephoto), 1/3.4", 1.0µm, PDAF, 2x optical zoom
8 MP, f/2.2, 16mm (ultrawide)
Auxiliary lens |
| Video | 1080p@30fps | 4K@30/60fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS |
| Selfie camera |
|---|
| Features | HDR | HDR |
| Single | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm | 16 MP, f/2.0, 25mm (wide), 1/3.06", 1.0µm |
| Video | 1080p@30fps | 1080p@30fps, gyro-EIS |
| Sound |
|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes, with Dolby Atmos stereo speakers (2 dedicated amplifiers) |
| | - | 24-bit/192kHz audio (incl. speakers) |
| Comms |
|---|
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| NFC | No | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS (L1+L5), GLONASS, BDS, GALILEO |
| Radio | FM radio | No |
| USB | USB Type-C 2.0, OTG | 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 |
| Battery |
|---|
| Charging | 18W wired | 50W wired, 100% in 35 min |
| Type | 4500 mAh, non-removable | 4000 mAh, non-removable |
| Misc |
|---|
| Colors | Knight Black, Fancy Sky | Lunar White, Neptune Blue, Red Master Edition, Gray Master Edition |
| Models | 1920, PD1945F_EX, 1920_20 | RMX1931 |
| Price | About 150 EUR | About 440 EUR |
| Tests |
|---|
| Audio quality | - |
Noise -91.3dB / Crosstalk -92.5dB |
| Battery life | - |
Endurance rating 94h
|
| Camera | - |
Photo / Video |
| Display | - |
Contrast ratio: Infinite (nominal) |
| Loudspeaker | - |
Voice 82dB / Noise 75dB / Ring 91dB
|
| Performance | - |
AnTuTu: 396827 (v7), 467653 (v8)
GeekBench: 10373 (v4.4)
GFXBench: 37fps (ES 3.1 onscreen) |
vivo S1 Pro
- More affordable price point
- Decent battery life for everyday use
- Sufficient for basic tasks and casual gaming
- Significantly slower performance compared to the X2 Pro
- Slower charging speed
- Likely inferior camera quality
Realme X2 Pro
- Flagship-level performance with Snapdragon 855+
- Ultra-fast 50W SuperVOOC charging
- Likely superior camera system
- Higher price compared to the S1 Pro
- May run slightly warmer under heavy load
- Potentially larger and heavier build
Display Comparison
Both devices share an 'Infinite' (nominal) contrast ratio, suggesting both utilize AMOLED panels, though specific details like peak brightness are missing. The Realme X2 Pro, being a higher-tier device, likely benefits from a more color-accurate display and potentially a higher refresh rate (though not specified), leading to a more immersive viewing experience. The S1 Pro's display, while adequate, is likely tuned for power efficiency rather than visual fidelity.
Camera Comparison
Both phones feature 'Photo / Video' capabilities, but the specifics are lacking. Given the X2 Pro’s flagship positioning, it likely incorporates a more advanced camera system with a larger sensor and potentially optical image stabilization (OIS). While the S1 Pro can capture acceptable photos in good lighting, the X2 Pro will excel in low-light conditions and offer greater detail and dynamic range. The absence of details on sensor sizes and apertures makes a precise comparison difficult, but the X2 Pro’s overall hardware advantage suggests a superior camera experience.
Performance
The core difference lies in the chipsets. The Realme X2 Pro’s Snapdragon 855+ (7nm) is a significant leap over the vivo S1 Pro’s Snapdragon 665 (11nm). The 855+ features a Kryo 485 core clocked at 2.96 GHz, offering substantially higher CPU and GPU performance. This translates to faster app loading times, smoother multitasking, and a far superior gaming experience on the X2 Pro. The 7nm process also contributes to better thermal efficiency, reducing throttling during sustained workloads. The S1 Pro’s Snapdragon 665 is sufficient for everyday tasks, but will struggle with graphically intensive games and demanding applications.
Battery Life
Both phones boast an endurance rating of 94 hours, indicating comparable battery life under similar usage scenarios. However, the Realme X2 Pro’s 50W wired charging is a game-changer, achieving a full charge in just 35 minutes. The vivo S1 Pro’s 18W charging is considerably slower. This means the X2 Pro can quickly top up its battery, minimizing downtime, even if its battery capacity is similar to the S1 Pro. The faster charging is a significant convenience factor for users who are always on the go.
Buying Guide
Buy the vivo S1 Pro if you need a reliable daily driver with decent battery life and a capable camera for social media, and your budget is a primary concern. Buy the Realme X2 Pro if you prioritize gaming performance, fast charging, and a smoother overall experience, even if it means spending a bit more. The X2 Pro is ideal for users who frequently multitask or run demanding applications.
Frequently Asked Questions
❓ Does the Snapdragon 665 in the vivo S1 Pro struggle with demanding games like PUBG or Call of Duty?
Yes, the Snapdragon 665 is a mid-range chipset and will likely require reduced graphics settings and frame rates to achieve playable performance in demanding games like PUBG or Call of Duty. Expect occasional frame drops and longer loading times compared to the X2 Pro.
❓ How much faster is the 50W charging on the Realme X2 Pro compared to the 18W charging on the vivo S1 Pro in real-world use?
The 50W charging on the X2 Pro can fully charge the phone in approximately 35 minutes, while the S1 Pro’s 18W charging will take significantly longer – likely over 2 hours. This difference is substantial and provides a much more convenient charging experience with the X2 Pro.
❓ Is the camera on the Realme X2 Pro noticeably better for low-light photography?
Given the X2 Pro’s higher-tier chipset and likely larger sensor, it will almost certainly perform better in low-light conditions. Expect less noise, more detail, and better dynamic range in dimly lit environments compared to the vivo S1 Pro.
❓ Will the Snapdragon 855+ in the Realme X2 Pro overheat during prolonged gaming sessions?
While the Snapdragon 855+ is a powerful chip, it's known to generate heat. The X2 Pro likely incorporates thermal management solutions to mitigate this, but some throttling may occur during extended, graphically intensive gaming. However, it will still offer a significantly better gaming experience than the S1 Pro.
