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For India-market buyers, the realme P4 5G has the higher listed display refresh rate, larger typical battery, faster-rated wired charging and an ultra-wide rear camera. The Xiaomi Redmi Note 15 SE 5G adds microSD expansion up to 1TB and lists a higher-resolution selfie camera. Both have 6.77-inch AMOLED displays with the same stated pixel dimensions and a 50MP main rear camera.
These are manufacturer specifications, not independent tests of speed, battery life, charging time or camera quality. Prices below are a dated marketplace snapshot, not fixed launch prices.
realme P4 vs Redmi Note 15 SE 5G: specifications
| Specification | realme P4 5G | Xiaomi Redmi Note 15 SE 5G |
|---|---|---|
| Processor | MediaTek Dimensity 7400 Ultra, up to 2.6GHz | Qualcomm Snapdragon 6 Gen 3, up to 2.4GHz |
| Display | 6.77-inch HyperGlow AMOLED; 144Hz; 1080 × 2392 pixels | 6.77-inch curved AMOLED; up to 120Hz; 2392 × 1080 pixels |
| RAM and storage | 6GB or 8GB RAM; 128GB or 256GB UFS 3.1 storage | 6GB or 8GB RAM; 128GB or 256GB UFS 2.2 storage |
| Storage expansion | Card expansion not listed on the reviewed specification page | microSD up to 1TB via hybrid SIM/microSD slot |
| Rear cameras | 50MP main + 8MP ultra-wide | 50MP main + 2MP depth |
| Front camera | 16MP | 20MP |
| Battery | 7000mAh typical; 6830mAh rated | 5800mAh typical |
| Wired charging | 80W; adapter included | 45W; charger in box |
| Software listed | realme UI 6.0 based on Android 15 | Xiaomi HyperOS 3 with Android 15 |
Specifications are from the realme India P4 specification page and Xiaomi India Redmi Note 15 SE 5G specification page. Maximum CPU clock figures alone do not establish which phone performs better overall.
Display: 144Hz on the P4, up to 120Hz on Redmi
Both phones list a 6.77-inch AMOLED screen and 1080 × 2392 pixel dimensions. The difference in the published refresh-rate specification is 144Hz for the P4 and up to 120Hz for the Redmi. A higher refresh-rate ceiling can support smoother motion when the content and software use it, but these figures do not establish display quality or how often each phone runs at its maximum rate.
#1 Best Overall
- 167.2 x 76.6 x 7.9 mm (6.58 x 3.02 x 0.31 in)
- 201 g (7.09 oz)
- 6.74 inches, IPS LCD, 720 x 1600 pixels
- 128GB Storage, 4GB RAM, microSDXC (uses shared SIM slot)
- Android 15, Realme UI 5.0, Unisoc T7250 (12 nm), Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Battery and charging: bigger figures on the P4
realme lists the P4 battery as 7000mAh typical and 6830mAh rated; Xiaomi lists 5800mAh typical for the Redmi. The P4 is specified for 80W wired charging, compared with 45W for the Redmi, and both manufacturers list a charging adapter or charger in the box. Capacity and charging wattage are not measured battery endurance or a timed charge result, so they cannot by themselves predict how long either phone lasts or takes to recharge.
Cameras: choose by lens role, not megapixels alone
Rear cameras
Both phones list a 50MP main rear camera. The P4 adds an 8MP ultra-wide camera for a wider field of view; Redmi’s secondary rear camera is a 2MP depth sensor. These different roles matter more to framing options than a simple megapixel comparison, and the specifications do not establish which phone produces better photos.
Selfie cameras
The Redmi lists a 20MP front camera and the P4 a 16MP front camera. That is a resolution difference, not proof of better selfie detail or image processing in real-world use.
Rank #2
- 167.2 x 76.6 x 7.9 mm (6.58 x 3.02 x 0.31 in)
- 201 g (7.09 oz)
- 6.74 inches, IPS LCD, 720 x 1600 pixels
- 64GB Storage, 4GB RAM, microSDXC (uses shared SIM slot)
- Android 15, Realme UI 5.0, Unisoc T7250 (12 nm), Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Storage and software
Both models are listed with 6GB or 8GB of RAM and 128GB or 256GB of internal storage. The P4 uses UFS 3.1 storage, while the Redmi lists UFS 2.2. Xiaomi explicitly supports microSD expansion up to 1TB through a hybrid SIM/microSD slot, which may require choosing between a second SIM and the memory card. The reviewed realme specification page lists dual nano-SIM and storage configurations but does not list a memory-card slot.
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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →realme lists realme UI 6.0 based on Android 15; Xiaomi lists HyperOS 3 with Android 15. Update-support durations are not established by those software-version listings.
Price difference in India: check the live variant and stock
A 91mobiles comparison listing accessed in 2026 showed the Redmi Note 15 SE 5G at ₹24,889 via Amazon India and the realme P4 5G at ₹20,999, marked out of stock. This is a volatile listing snapshot, not an official launch price or a dependable current price gap. The listing gives release months of April 2026 for the Redmi and August 2025 for the P4. Check the delivered price, exact RAM/storage configuration, seller and stock status before buying: 91mobiles phone comparison listing.
Rank #3
- 144Hz High Refresh Rate Large Display – Equipped with a 6.8-inch high-definition LCD screen featuring a 144Hz ultra-smooth refresh rate, delivering fluent visual experience for daily browsing, video watching, gaming and social media. The large screen brings wider field of view and comfortable single-hand operation, effectively reducing screen stutter and eye fatigue during long-time use.
- 6600mAh Giant Battery & 45W Ultra Fast Charge – Built-in 6600mAh high-capacity durable battery supports all-day long-lasting battery life, easily meeting heavy usage needs of gaming, video playback and outdoor travel. 45W ultra-fast charging technology greatly shortens charging time, quickly replenishes power and eliminates low-battery anxiety for daily use.
- Powerful Dimensity 6300 5G Processor – Adopts MediaTek Dimensity 6300 high-performance 5G chip, with optimized operation algorithm and excellent heat dissipation performance. It ensures stable and smooth running of daily office apps, social software and mainstream mobile games, while supporting 5G full-network fast connection for ultra-fast downloading and network surfing.
- 50MP AI Dual Camera System – Comes with a 50MP high-definition rear main camera and 5MP front selfie camera. The intelligent AI imaging algorithm optimizes light, color and details automatically, enabling clear and vivid photos in bright daylight or low-light night environment. It supports portrait mode, panorama and multiple shooting modes to record wonderful moments easily.
- IP64 Waterproof & Dustproof & Practical Design – Features IP64 professional waterproof and dustproof rating, effectively resisting daily splashing water, sweat and fine dust, improving the phone’s durability and extending service life. Unlocked design supports global mainstream network bands, compatible with various operators, perfect for daily communication, travel and outdoor scenarios.
Which phone should you buy?
Choose the realme P4 5G if
- You want the higher stated refresh-rate ceiling.
- You prefer the larger listed typical battery and higher rated charging wattage.
- An ultra-wide rear camera is useful to you.
- You are comparing like-for-like RAM and storage variants and its current price and stock work for your budget.
Choose the Redmi Note 15 SE 5G if
- You need the officially listed microSD expansion option up to 1TB.
- You prefer the higher nominal front-camera resolution.
- You value its curved AMOLED display design or the exact variant and seller offer available to you.
For either phone, compare the same RAM/storage capacity and confirm what the seller includes. The listed hardware makes the P4 more aligned with refresh rate, battery capacity, charging wattage and rear-camera framing flexibility; Redmi is more aligned with expandable storage and selfie-camera resolution. That is a specification-based fit, not an overall performance or camera verdict.
Water resistance: read Xiaomi’s qualification carefully
Xiaomi describes the Redmi as having IP65 + IP66 resistance under specified laboratory conditions and states that warranty coverage excludes liquid damage outside those test conditions. This should not be read as a general waterproof guarantee. The P4 comparison here does not establish an equivalent rating.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
