The Oppo A5x and Realme 8i represent compelling options in the crowded budget smartphone market. While both aim to deliver a solid experience without breaking the bank, they take different approaches. The A5x boasts a newer Mediatek Dimensity 6300 chipset and significantly faster charging, while the 8i relies on the older Helio G96 and a focus on endurance. This comparison dives deep into the specifics to determine which device offers the best value.
🏆 Quick Verdict
For most users, the Oppo A5x emerges as the better choice. Its Mediatek Dimensity 6300, built on a more efficient 6nm process, provides a performance advantage over the Realme 8i’s 12nm Helio G96. Coupled with 45W charging, the A5x offers a more modern and convenient user experience, despite both phones sharing an identical 131-hour endurance rating.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G bands | LTE | 1, 3, 5, 8, 38, 40, 41 |
| 5G bands | SA/NSA | - |
| Speed | HSPA, LTE, 5G | HSPA, LTE |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
| Launch |
|---|
| Announced | 2025, May 23 | 2021, September 09 |
| Status | Available. Released 2025, May 25 | Available. Released 2021, September 14 |
| Body |
|---|
| Build | - | Glass front, plastic frame, plastic back |
| Dimensions | 165.7 x 76.2 x 8 mm (6.52 x 3.00 x 0.31 in) | 164.1 x 75.5 x 8.5 mm (6.46 x 2.97 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 193 g (6.81 oz) | 194 g (6.84 oz) |
| Display |
|---|
| Protection | Unspecified | - |
| Resolution | 720 x 1604 pixels, 20:9 ratio (~264 ppi density) | 1080 x 2412 pixels, 20:9 ratio (~400 ppi density) |
| Size | 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio) | 6.6 inches, 104.8 cm2 (~84.6% screen-to-body ratio) |
| Type | IPS LCD, 120Hz, 1000 nits (HBM) | IPS LCD, 120Hz, 600 nits (peak) |
| Platform |
|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 6300 (6 nm) | Mediatek MT6781 Helio G96 (12 nm) |
| GPU | Mali-G57 MC2 | Mali-G57 MC2 |
| OS | Android 15, ColorOS 15 | Android 11, Realme UI 2.0 |
| Memory |
|---|
| Card slot | microSDXC | microSDXC (dedicated slot) |
| Internal | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM |
| | - | UFS 2.1 |
| Main Camera |
|---|
| Features | LED flash, HDR, panorama | LED flash, HDR, panorama |
| Single | 32 MP, f/1.9, (wide), AF | 16 MP, f/2.1, (wide), 1/3.0", 1.0µm |
| Triple | - | 50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF
2 MP (macro)
Auxiliary lens |
| Video | Yes | 1080p@30fps |
| Selfie camera |
|---|
| Features | - | Panorama |
| Single | 5 MP, f/2.2, (wide) | 16 MP, f/2.1, (wide), 1/3.0", 1.0µm |
| Video | Yes | 1080p@30fps |
| Sound |
|---|
| 3.5mm jack | - | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms |
|---|
| Bluetooth | 5.1, A2DP, LE | 5.1, A2DP, LE |
| NFC | No | Yes (market/region dependent) |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS | GPS, GLONASS, GALILEO, BDS |
| Radio | Unspecified | 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, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | 45W wired, 33W PPS, 13.5W PD, 50% in 37 min | 18W wired |
| Type | 6000 mAh | 5000 mAh |
| Misc |
|---|
| Colors | Tranquil Lake Green, Laser White | Space Black, Space Purple |
| Models | - | RMX3151 |
| Price | ₹ 11,499 | About 440 EUR |
| Tests |
|---|
| Battery life | - |
Endurance rating 131h
|
| Camera | - |
Photo / Video |
| Loudspeaker | - |
-28.4 LUFS (Average)
|
Oppo A5x
- Faster 45W charging with multiple protocols (PPS, PD)
- More efficient Mediatek Dimensity 6300 chipset (6nm)
- Potentially better sustained performance due to improved thermal efficiency
- Display specifications currently unknown
- Camera details are lacking
Realme 8i
- Long battery endurance (131 hours)
- Established contrast ratio of 1244:1
- Potentially lower price point
- Slower 18W charging
- Older and less efficient Helio G96 chipset (12nm)
- Limited performance headroom for demanding tasks
Display Comparison
The Realme 8i’s display is characterized by a measured peak brightness of 540 nits and a 1244:1 contrast ratio. While adequate for indoor use, this falls short of modern standards. The Oppo A5x’s display specifications are currently unavailable, but given its market positioning, it’s likely to offer similar brightness levels. However, the A5x may benefit from newer panel technology, potentially offering improved color accuracy and viewing angles. Without specific details on the A5x’s panel type, it’s difficult to definitively declare a winner, but the Realme 8i’s contrast ratio provides a quantifiable advantage.
Camera Comparison
Both devices are listed as having Photo/Video capabilities, but lack specific details regarding sensor size, aperture, or image stabilization. This suggests a focus on affordability over advanced camera features. The Realme 8i likely features a standard camera setup for its price point, potentially including a primary sensor around 48MP. The Oppo A5x’s camera specifications are unknown, but it’s reasonable to expect a similar configuration. Without more information, it’s impossible to assess the image quality or low-light performance of either device. The presence of a 2MP macro lens on the 8i is unlikely to significantly enhance the photography experience.
Performance
The core difference lies in the chipsets. The Oppo A5x’s Mediatek Dimensity 6300 (6nm) features a more modern architecture than the Realme 8i’s Helio G96 (12nm). The Dimensity 6300’s Cortex-A76 cores, clocked at 2.4 GHz, are faster than the G96’s 2.05 GHz Cortex-A76 cores. The 6nm fabrication process also translates to improved power efficiency, meaning less heat generation and potentially sustained performance during demanding tasks. While both CPUs share a 6x Cortex-A55 configuration at 2.0 GHz, the A5x’s overall system-on-chip is demonstrably more advanced, offering a smoother experience for multitasking and gaming.
Battery Life
Interestingly, both the Oppo A5x and Realme 8i share an endurance rating of 131 hours. However, the charging capabilities are vastly different. The A5x supports 45W wired charging, 33W PPS, and 13.5W PD, allowing it to reach 50% charge in just 37 minutes. The Realme 8i, in contrast, is limited to 18W wired charging. This means the A5x offers significantly faster top-ups, mitigating any potential battery life differences. While both phones may offer similar overall battery life, the A5x’s charging speed provides a substantial convenience advantage.
Buying Guide
Buy the Oppo A5x if you prioritize future-proofing, faster charging speeds, and a more efficient processor for everyday tasks and light gaming. This phone is ideal for users who frequently switch between apps and value a responsive experience. Buy the Realme 8i if you are primarily concerned with maximizing battery life and are comfortable with a slightly older chipset. It’s a good option for users who primarily use their phone for calls, texts, and basic social media.
Frequently Asked Questions
❓ Does the Mediatek Dimensity 6300 in the Oppo A5x handle demanding games like PUBG Mobile smoothly?
The Dimensity 6300 is a capable chipset for mid-range gaming. While it won't deliver flagship-level performance, it should handle PUBG Mobile at medium settings with stable frame rates. The 6nm process also helps to mitigate thermal throttling, allowing for longer gaming sessions.
❓ How much faster is the 45W charging on the Oppo A5x compared to the 18W charging on the Realme 8i in real-world use?
The 45W charging on the A5x is significantly faster. While both phones have the same endurance rating, the A5x can reach 50% charge in approximately 37 minutes, whereas the Realme 8i will take considerably longer – likely over an hour and a half – to achieve the same level of charge. This makes the A5x much more convenient for users who need a quick power boost.
❓ Is the Realme 8i a good choice for users who prioritize battery life above all else?
The Realme 8i's 131-hour endurance rating is respectable, but the Oppo A5x's faster charging largely negates this advantage. If you absolutely need the longest possible battery life and rarely need to charge your phone during the day, the 8i is a viable option. However, for most users, the convenience of faster charging outweighs the marginal battery life difference.
