Redmi Note 15 Pro+ (25092RA4BG)

Redmi Note 15 Pro+ (25092RA4BG)
Security Grade B Calculator v1	Redmi Note 15 Pro+ Brand: Redmi (Parent: Xiaomi Corporation) Category: mobile phone • Model / Gen: Note 15 Series 25092RA4BG Release Date: 2026-01-20 • Status: In sale Classification Date: 2026-10-26 • [[1](https://www.mi.com/global/product/redmi)‑note‑15‑pro‑plus/ Official Website]

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	[[2](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Bootloader unlock is available after official application; public tampering exploits are limited.
Known vulnerabilities	Rare	[[3](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Occasional Android‑related CVEs; vendor provides regular quarterly security patches.
Prior attacks	None	[[4](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	No large‑scale real‑world attacks targeting this exact Redmi model.
Updatability	Very common	[[5](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Regular HyperOS OTA firmware and security updates are released.
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	[[6](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Supports Xiaomi‑ecosystem pairing, full cross‑device mutual authentication is limited.
Communications	Encrypted with up-to-date encryption	[[7](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Network traffic protected by modern TLS and WPA3 encryption.
Storage	Encrypted with up-to-date encryption	[[8](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Device‑wide full‑disk encryption is supported under HyperOS.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Full	[[9](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Complete local and Mi‑account user permission management.
Authentication	Secure	[[10](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	In‑display fingerprint and AI face unlock are available for secure login.
Brute-force protection	Exist	[[11](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	System login lockout mechanism to prevent brute‑force password attempts.
Event logging	Partial logging	[[12](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Partial login and security‑related events stored locally.
Passwords	Require change after setup with complexity requirements	[[13](https://trust.mi.com/zh)‑CN/misrc/updates/phone 🔗 Proof]	Password complexity rules enforced for user accounts.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Xiaomi HyperOS 2 (Android 15) (Companion App: Mi Fitness)
Hardware (CPU / GPU)	CPU: Snapdragon 7s Gen 4 (4nm octa‑core up to 2.7GHz) • GPU: Adreno GPU
Memory & Storage	Memory: 8GB /12GB LPDDR4X • Storage: 256GB /512GB UFS 2.2
Power, Battery & Charging	Battery: 7000 mAh typical • Power: 90W turbo wired charging • Charging: USB‑C, PD charging protocol support
Display & Camera	Display: 6.77‑inch AMOLED, 2392×1080 FHD+, 120Hz adaptive refresh rate, peak brightness 3200 nits • Camera: Rear 200MP main(OIS)+8MP ultra‑wide camera; Front 32MP selfie camera, in‑display fingerprint sensor
Sound & Connectivity	Sound: Stereo dual speakers with Dolby Atmos • Connectivity: 5G, Wi‑Fi 6, Bluetooth 5.4, NFC, IR blaster, GNSS GPS/Beidou/Galileo; IP66 dust‑splash resistance
Physical (Dimensions & Mass)	Dimensions: 163.34 × 78.31 × 8.19 mm • Mass: 207 g

This is Redmi Note 15 Pro+ (model 25092RA4BG), a mid‑range 5G smartphone running Xiaomi HyperOS 2 based on Android 15, powered by Snapdragon 7s Gen 4 chipset. It receives regular quarterly HyperOS security OTA updates, supports modern network encryption and device‑level full‑disk storage encryption. It provides secure biometric authentication via in‑display fingerprint, full account management, brute‑force login protection and partial security event logging. Hardware tampering is possible via official bootloader unlock; known vulnerabilities are rare and patched timely by vendor.