The Realme C25 and Oppo A15s represent the fiercely competitive sub-$150 smartphone market. Both aim to deliver essential smartphone functionality at an accessible price point, but they diverge significantly in their internal hardware. This comparison dissects those differences, focusing on performance, charging, and the user experience each offers.
🏆 Quick Verdict
For most users, the Realme C25 is the better choice. Its Mediatek Helio G70 chipset provides a noticeable performance uplift over the Oppo A15s’ Helio P35, making it more suitable for gaming and multitasking. While the A15s offers a slightly cleaner software experience, the C25’s faster charging and superior processing power outweigh this advantage.
| 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 | 1, 3, 5, 8, 38, 40, 41 | 1, 3, 5, 8, 38, 40, 41 |
| Speed | HSPA, LTE | HSPA, LTE |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch |
|---|
| Announced | 2021, March 23 | 2020, December 18. Released 2020, December 18 |
| Status | Available. Released 2021, March 27 | Discontinued |
| Body |
|---|
| Build | Glass front, plastic back, plastic frame | Glass front, plastic back, plastic frame |
| Dimensions | 164.5 x 75.9 x 9.6 mm (6.48 x 2.99 x 0.38 in) | 164 x 75.4 x 7.9 mm (6.46 x 2.97 x 0.31 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 209 g (7.37 oz) | 177 g (6.24 oz) |
| Display |
|---|
| Resolution | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) | 720 x 1600 pixels, 20:9 ratio (~269 ppi density) |
| Size | 6.5 inches, 102.0 cm2 (~81.7% screen-to-body ratio) | 6.52 inches, 102.6 cm2 (~83.0% screen-to-body ratio) |
| Type | IPS LCD, 480 nits (typ) | IPS LCD, 480 nits (typ) |
| Platform |
|---|
| CPU | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
| Chipset | Mediatek MT6769V/CB Helio G70 (12 nm) | Mediatek MT6765 Helio P35 (12 nm) |
| GPU | Mali-G52 2EEMC2 | PowerVR GE8320 |
| OS | Android 11, Realme UI 2.0 | Android 10, ColorOS 7.2 |
| Memory |
|---|
| Card slot | microSDXC (dedicated slot) | microSDXC |
| Internal | 64GB 4GB RAM, 128GB 4GB RAM | 64GB 4GB RAM, 128GB 4GB RAM |
| | eMMC 5.1 | eMMC 5.1 |
| Main Camera |
|---|
| Features | LED flash, HDR, panorama | LED flash, HDR, panorama |
| Single | 8 MP, f/2.0, 26mm (wide), 1/4.0", 1.12µm | - |
| Triple | 48 MP, f/1.8, 26mm (wide), PDAF (International model)
or
13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF (India model)
2 MP (macro)
Auxiliary lens | 13 MP, f/2.2, (wide), 1/3.1", 1.12µm, PDAF
2 MP (macro)
Auxiliary lens |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera |
|---|
| Features | HDR, panorama | HDR |
| Single | 8 MP, f/2.0, 26mm (wide), 1/4.0", 1.12µm | 8 MP, f/2.0, (wide) |
| 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, aptX |
| NFC | No | No |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS, GALILEO, BDS |
| Radio | Unspecified | FM radio |
| USB | USB Type-C 2.0, OTG | microUSB 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Features |
|---|
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Fingerprint (rear-mounted), accelerometer, proximity |
| Battery |
|---|
| Charging | 18W wired
5W reverse wired | 10W wired |
| Type | 6000 mAh | Li-Po 4230 mAh |
| Misc |
|---|
| Colors | Water Blue, Water Gray | Dynamic Black, Fancy White |
| Models | RMX3193, RMX3191 | CPH2179 |
| Price | About 140 EUR | About 130 EUR |
| SAR | 0.82 W/kg (head) 0.81 W/kg (body) | - |
Realme C25
- Superior performance with the Helio G70 chipset
- Faster 18W charging for quicker top-ups
- More capable GPU for gaming
- Software experience may be more cluttered with Realme UI
- Camera quality likely similar to Oppo A15s without detailed specs
Oppo A15s
- Potentially cleaner software experience with ColorOS
- Competitive price point
- Decent battery life for basic usage
- Significantly weaker performance with the Helio P35
- Slower 10W charging
- Less suitable for gaming or demanding apps
Display Comparison
Neither device boasts a standout display. Both likely utilize LCD panels, typical for this price bracket. Specifics like resolution and peak brightness are not provided, but we can assume they are similar – around HD+ resolution and moderate brightness levels. The focus here isn't on visual fidelity, but rather on functional usability. Bezels are likely to be noticeable on both devices, contributing to a less immersive viewing experience.
Camera Comparison
Both phones likely feature a multi-camera setup, but details are scarce. It’s safe to assume both include a primary camera, depth sensor, and potentially a macro lens. However, the quality of these sensors is likely to be modest. Without specific megapixel counts or aperture information, it’s difficult to make a definitive judgment. The image processing algorithms will play a significant role, and Realme’s typically leans towards more vibrant, saturated images, while Oppo often aims for a more natural look. The absence of Optical Image Stabilization (OIS) on either device suggests low-light performance will be limited.
Performance
The core difference lies in the chipsets. The Realme C25’s Mediatek Helio G70, built on a 12nm process, features a more modern CPU architecture – specifically, two Cortex-A75 cores clocked at 2.0 GHz and six Cortex-A55 cores at 1.7 GHz. This contrasts with the Oppo A15s’ Helio P35, which uses four Cortex-A53 cores at 2.35 GHz and another four at 1.8 GHz. While the P35’s higher clock speed *appears* advantageous, the A75 cores in the G70 offer significantly better single-core performance, crucial for responsive app launches and smoother multitasking. The G70 also benefits from a more capable GPU, making it the clear winner for gaming. The Realme C25 will handle demanding titles with higher frame rates and fewer stutters.
Battery Life
Battery capacity isn’t specified, but both devices likely house around a 4000-5000 mAh battery, standard for this segment. The Realme C25’s 18W wired charging is a significant advantage over the Oppo A15s’ 10W charging. This translates to considerably faster charging times – potentially reducing a full charge from over 3 hours on the A15s to around 2 hours on the C25. This faster charging capability is a practical benefit for users who rely heavily on their phones throughout the day.
Buying Guide
Buy the Realme C25 if you prioritize performance for gaming, streaming, or running multiple apps simultaneously. The Helio G70 chipset and 18W charging are key benefits for power users. Buy the Oppo A15s if you prefer a simpler, potentially less cluttered software experience and are primarily focused on basic smartphone tasks like calls, messaging, and light social media use. The A15s is a viable option for those on a very tight budget.
Frequently Asked Questions
❓ Will the Realme C25 handle popular games like PUBG Mobile or Call of Duty Mobile?
The Realme C25, with its Helio G70 chipset and improved GPU, is capable of running PUBG Mobile and Call of Duty Mobile at medium settings with playable frame rates. However, don't expect a consistently smooth experience at the highest settings. The Oppo A15s will struggle with these titles, likely requiring significant compromises in graphics settings.
❓ How much faster is the 18W charging on the Realme C25 compared to the 10W charging on the Oppo A15s?
The 18W charging on the Realme C25 can reduce charging times by approximately 40-60% compared to the Oppo A15s’ 10W charging. While exact times depend on battery level and usage, you can expect a full charge to take around 2 hours on the C25 versus over 3 hours on the A15s.
❓ Is the difference in CPU architecture (Cortex-A75 vs Cortex-A53) noticeable in everyday tasks?
Yes, the difference is noticeable. The Cortex-A75 cores in the Realme C25’s Helio G70 provide a significant boost in single-core performance, resulting in snappier app launches, smoother scrolling, and a more responsive overall user experience. The Oppo A15s’ Cortex-A53 cores are less efficient at handling individual tasks.
