The Realme P3x and vivo V30 SE represent compelling options in the increasingly competitive sub-$250 smartphone market. While both aim to deliver a solid experience without breaking the bank, they take different approaches to achieving this goal – Realme prioritizing raw processing power with the Dimensity 6400, while vivo focuses on efficiency with the Snapdragon 4 Gen 2. This comparison dissects their key differences to help you choose the right device.
🏆 Quick Verdict
For users prioritizing sustained performance in demanding apps and light gaming, the Realme P3x edges out the vivo V30 SE thanks to its more powerful Dimensity 6400 chipset. However, the vivo V30 SE’s 4nm Snapdragon 4 Gen 2 offers better power efficiency and comparable everyday performance for most users.
| 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 |
| 4G bands | 1, 3, 5, 8, 28, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 66 |
| 5G bands | 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA | 1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
| Launch |
|---|
| Announced | 2025, February 18 | 2024, May 01 |
| Status | Available. Released 2025, February 28 | Available. Released 2024, May 01 |
| Body |
|---|
| Build | Glass front, aluminum frame, plastic back or silicone polymer back (eco leather) | Glass front, plastic or silicone polymer (eco leather) back |
| Dimensions | 165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in) | 163.2 x 75.8 x 7.8 mm (6.43 x 2.98 x 0.31 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 197 g (6.95 oz) | 185.5 g or 191 g (6.56 oz) |
| Display |
|---|
| Protection | ArmorShell glass | - |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~392 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) |
| Size | 6.72 inches, 109.0 cm2 (~86.3% screen-to-body ratio) | 6.67 inches, 107.4 cm2 (~86.8% screen-to-body ratio) |
| Type | IPS LCD, 120Hz, 950 nits (peak) | AMOLED, 120Hz, 1200 nits (HBM), 1800 nits (peak) |
| Platform |
|---|
| CPU | Octa-core (2x2.5 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 6400 (6 nm) | Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm) |
| GPU | Mali-G57 MC2 | Adreno 613 |
| OS | Android 15, Realme UI 6.0 | Android 14, Funtouch 14 |
| Memory |
|---|
| Card slot | microSDXC (uses shared SIM slot) | microSDXC (uses shared SIM slot) |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM | 256GB 8GB RAM |
| Main Camera |
|---|
| Dual | 50 MP, f/1.8, 27mm (wide), 2.88", 0.61µm, PDAF
Auxiliary lens | - |
| Features | LED flash, HDR, panorama | LED flash, panorama, HDR |
| Triple | - | 50 MP, f/1.8, 26mm (wide), PDAF
8 MP, f/2.2, (ultrawide)
2 MP (macro) |
| Video | 1080p@30/60fps | 1080p@30fps |
| Selfie camera |
|---|
| Features | Panorama | - |
| Single | 8 MP, f/2.0, (wide) | 16 MP, f/2.0, (wide) |
| Video | 1080p@30fps | 1080p@30fps |
| Sound |
|---|
| 35mm jack | No | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
| Comms |
|---|
| Bluetooth | 5.3, A2DP, LE, aptX HD, BLE Audio | 5.0, A2DP, LE |
| NFC | No | No |
| Positioning | GPS, GALILEO, GLONASS, QZSS, BDS | GPS, GLONASS, GALILEO, BDS, QZSS |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Features |
|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | 45W wired
5W reverse wired | 44W wired, 50% in 25 min |
| Type | Si/C Li-Ion 6000 mAh | Li-Ion 5000 mAh |
| Misc |
|---|
| Colors | Midnight Blue, Stellar Pink, Lunar Silver | Crystal Black, Leather Purple |
| Models | RMX3944 | - |
| Price | ₹ 12,990 | About 250 EUR |
Realme P3x
- More powerful CPU for demanding tasks
- Faster wired charging (45W)
- Reverse wired charging capability
- Less power-efficient chipset (6nm)
- Potential for more thermal throttling
vivo V30 SE
- More power-efficient chipset (4nm)
- Potentially better battery life
- Likely smoother thermal performance
- Slightly less CPU performance
- No reverse wired charging
Display Comparison
Neither device’s display specifications are provided, so a direct comparison is limited. However, given the price bracket, we can assume both utilize LCD panels. The choice will likely come down to color calibration and brightness, areas where vivo historically performs well. The absence of high refresh rate information suggests both are likely capped at 60Hz, prioritizing battery life over visual fluidity.
Camera Comparison
Without detailed camera specs, a definitive comparison is difficult. However, both phones likely feature a primary camera paired with depth or macro sensors. The image processing style will be a key differentiator – Realme often leans towards vibrant, saturated colors, while vivo typically aims for more natural tones. The absence of OIS on either device suggests image stabilization will rely heavily on software algorithms.
Performance
The core difference lies in the chipsets. The Realme P3x’s Mediatek Dimensity 6400 (6nm) features a more aggressive CPU configuration with 2x2.5 GHz Cortex-A76 cores alongside 6x2.0 GHz Cortex-A55 cores. This contrasts with the vivo V30 SE’s Qualcomm SM4450 Snapdragon 4 Gen 2 (4nm) which uses 2x2.2 GHz Cortex-A78 cores and 6x1.95 GHz Cortex-A55 cores. While the Snapdragon 4 Gen 2’s Cortex-A78 cores are newer architecture, the higher clock speeds of the Dimensity 6400 suggest a performance advantage in CPU-bound tasks. Crucially, the 4nm process of the Snapdragon 4 Gen 2 should translate to superior power efficiency and potentially less thermal throttling under sustained load. The Dimensity 6400’s 6nm node will require more power to achieve similar performance.
Battery Life
Both devices offer fast charging, with the Realme P3x at 45W and the vivo V30 SE at 44W, with the latter claiming a 50% charge in 25 minutes. While the wattage difference is minimal, the Snapdragon 4 Gen 2’s superior efficiency could mean the V30 SE achieves similar overall battery life with a potentially smaller battery capacity. The P3x also includes 5W reverse wired charging, a useful feature for topping up accessories.
Buying Guide
Buy the Realme P3x if you frequently engage in multitasking, enjoy mobile gaming (even at moderate settings), or need a phone that can handle resource-intensive applications. Buy the vivo V30 SE if you prioritize battery life, prefer a more streamlined user experience, and primarily use your phone for social media, communication, and casual browsing. The V30 SE is also a better choice for those who value efficient thermal management.
Frequently Asked Questions
❓ Will the Dimensity 6400 in the Realme P3x overheat during prolonged gaming sessions?
The Dimensity 6400, built on a 6nm process, is more prone to thermal throttling than the Snapdragon 4 Gen 2’s 4nm architecture. While it offers higher peak performance, expect some performance reduction after extended gaming. The phone’s thermal design will play a crucial role in mitigating this.
❓ How significant is the power efficiency difference between the 6nm and 4nm chipsets?
The move from 6nm to 4nm generally results in a 20-30% improvement in power efficiency at similar performance levels. This translates to longer battery life and reduced heat generation for the vivo V30 SE, even if the Realme P3x has a slightly more powerful CPU.
❓ Is the 44W charging on the vivo V30 SE fast enough for daily use?
Yes, 44W charging is considered fast charging and the V30 SE's claim of 50% charge in 25 minutes is competitive. It will provide a substantial charge in a short amount of time, making it convenient for quick top-ups throughout the day.
