The sub-$200 smartphone market is fiercely competitive, and the Realme C75 and Samsung Galaxy A15 are two strong contenders. The Realme C75 prioritizes exceptional battery life and fast charging, while the Samsung Galaxy A15 focuses on a brighter display and the established Samsung ecosystem. This comparison dives deep into the specs to determine which phone delivers the best value.
🏆 Quick Verdict
For users prioritizing longevity and rapid replenishment, the Realme C75 is the clear winner. Its 65:33h battery endurance and 45W charging significantly outperform the Galaxy A15’s 15:28h endurance and 25W charging. However, the Galaxy A15’s brighter screen is a compelling advantage for media consumption.
| 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, 28, 40, 41 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 |
| 5G bands | 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA | - |
| Speed | HSPA, LTE, 5G | HSPA, LTE |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
| Launch |
|---|
| Announced | 2025, May 02 | 2023, December 11 |
| Status | Available. Released 2025, May 08 | Available. Released 2023, December 16 |
| Body |
|---|
| Build | - | Glass front, plastic back, plastic frame |
| Dimensions | 165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in) | 160.1 x 76.8 x 8.4 mm (6.30 x 3.02 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM· Nano-SIM + Nano-SIM |
| Weight | 190 g (6.70 oz) | 200 g (7.05 oz) |
| Display |
|---|
| Protection | Mohs level 5 | - |
| Resolution | 720 x 1604 pixels, 20:9 ratio (~264 ppi density) | 1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density) |
| Size | 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio) | 6.5 inches, 103.7 cm2 (~84.3% screen-to-body ratio) |
| Type | IPS LCD, 120Hz, 625 nits | Super AMOLED, 90Hz, 800 nits (HBM) |
| Platform |
|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 6300 (6 nm) | Mediatek Helio G99 (6 nm) |
| GPU | Mali-G57 MC2 | Mali-G57 MC2 |
| OS | Android 15, Realme UI 6.0 | Android 14, up to 4 major Android upgrades, One UI 7 |
| Memory |
|---|
| Card slot | microSDXC (uses shared SIM slot) | microSDXC (uses shared SIM slot) |
| Internal | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM |
| Main Camera |
|---|
| Features | LED flash, panorama | LED flash, panorama, HDR |
| Single | 32 MP, f/1.8, 27mm (wide), 1/3.1", PDAF | - |
| Triple | - | 50 MP, f/1.8, 26mm (wide), 1/2.8", 0.64µm, PDAF
5 MP, f/2.2, 17mm (ultrawide), 1/5.0", 1.12µm
2 MP (macro) |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera |
|---|
| Features | Panorama | - |
| Single | 8 MP, f/2.0, (wide) | 13 MP, f/2.0, 26mm (wide), 1/3.06", 1.12µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound |
|---|
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms |
|---|
| Bluetooth | 5.3, A2DP, LE | 5.3, A2DP, LE |
| NFC | No | Yes (market/region dependent) |
| Positioning | GPS, GALILEO, GLONASS, QZSS, BDS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | No | FM radio (market/region dependent) |
| 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 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Features |
|---|
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, compass |
| Battery |
|---|
| Charging | 45W wired
5W reverse wired | 25W wired |
| Type | Li-Po 6000 mAh | 5000 mAh |
| Misc |
|---|
| Colors | Midnight Lily, Purple Blossom, Lily White | Brave Black, Optimistic Blue, Magical Blue, Personality Yellow |
| Models | RMX3943 | SM-A155F, SM-A155F/DSN, SM-A155M, SM-A155M/DS, SM-A155P, SM-A155R |
| Price | ₹ 11,990 | € 168.99 / $ 125.00 / £ 113.00 |
| SAR EU | - | 0.42 W/kg (head) 1.29 W/kg (body) |
| EU LABEL |
|---|
| Battery | 65:33h endurance, 1000 cycles | - |
| Energy | Class A | - |
| Free fall | Class B (180 falls) | - |
| Repairability | Class B | - |
Realme C75
- Exceptional battery life (65:33h endurance)
- Faster 45W wired charging
- Potentially more efficient chipset (Dimensity 6300, 6nm)
- Display brightness likely lower than Galaxy A15
- Camera details are limited
Samsung Galaxy A15
- Brighter display (808 nits)
- Established Samsung brand and One UI software
- Potentially better color accuracy
- Significantly shorter battery life (15:28h endurance)
- Slower 25W wired charging
- Less efficient chipset (Helio G99)
Display Comparison
The Samsung Galaxy A15 boasts a significantly brighter display, reaching a measured 808 nits. This is crucial for outdoor visibility, where the Realme C75’s display brightness is not specified but likely falls below this mark. While both phones likely utilize LCD panels given their price point, the A15’s higher peak brightness provides a superior viewing experience in direct sunlight. Bezels and color accuracy are not specified, but Samsung generally offers better color calibration in this segment.
Camera Comparison
Camera details are limited, but focusing on the main sensors is key. Without specific sensor sizes or apertures, it’s difficult to declare a clear winner. Both phones likely include a suite of secondary cameras (depth, macro) that offer limited utility. Image processing will be a key differentiator, with Samsung typically favoring more saturated and vibrant images, while Realme often aims for a more natural look. The absence of Optical Image Stabilization (OIS) on either device suggests image quality will suffer in low-light conditions.
Performance
Both the Realme C75 and Samsung Galaxy A15 are powered by Mediatek chipsets, but with key differences. The Realme C75’s Dimensity 6300 (6nm) features a slightly higher clocked Cortex-A76 core (2.4 GHz vs 2.2 GHz on the A15’s Helio G99). While both CPUs share the same Cortex-A55 efficiency cores, the 6nm process node of the Dimensity 6300 *should* offer slightly better power efficiency. However, real-world performance differences will likely be minimal for everyday tasks. Neither phone is positioned for demanding gaming, but the Dimensity 6300 may offer a marginal edge in sustained performance.
Battery Life
The Realme C75 dominates in battery endurance, achieving a remarkable 65:33 hours of use. This is significantly longer than the Samsung Galaxy A15’s 15:28 hours. This difference is partially attributable to the Realme’s larger battery capacity (not specified, but implied to be larger) and the more efficient Dimensity 6300 chipset. Furthermore, the C75’s 45W wired charging is substantially faster than the A15’s 25W charging, allowing for quicker top-ups. The C75 also includes 5W reverse wired charging, a feature absent on the A15, enabling it to charge accessories.
Buying Guide
Buy the Realme C75 if you need a phone that can reliably last through two full days of moderate use and charges incredibly quickly. This is ideal for travelers, commuters, or anyone who dislikes frequent charging. Buy the Samsung Galaxy A15 if you prioritize a brighter, more visible display for outdoor use and prefer the Samsung One UI software experience and brand reputation.
Frequently Asked Questions
❓ Does the Realme C75’s Dimensity 6300 chipset struggle with multitasking compared to the Galaxy A15’s Helio G99?
While the Helio G99 is a capable chipset, the Dimensity 6300’s slightly higher clocked cores and 6nm process should provide a comparable, if not slightly better, multitasking experience. Both phones are designed for everyday tasks, and neither is likely to exhibit significant performance bottlenecks during typical usage.
❓ How long will it realistically take to fully charge the Realme C75 with the 45W charger?
With 45W charging, the Realme C75 should be able to charge from 0% to 100% in approximately 60-75 minutes. This is significantly faster than the Samsung Galaxy A15’s 25W charging, which will likely take over 90 minutes for a full charge.
❓ Is the Samsung Galaxy A15’s display bright enough to comfortably use outdoors on a sunny day?
Yes, the Galaxy A15’s 808 nits peak brightness is sufficient for comfortable outdoor use even in bright sunlight. This is a key advantage over the Realme C75, where display brightness is not specified but is expected to be lower.
❓ Does the Realme C75 support 5G connectivity?
The context data does not explicitly state 5G support for the Realme C75. However, given the Dimensity 6300 chipset includes 5G modem capabilities, it is highly probable that the C75 does support 5G, but this should be verified with the official product specifications.
