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| Xiaomi 15 Ultra
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Security Grade
Calculator v
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Xiaomi 15 Ultra
Category: Smartphone • Model / Gen: Xiaomi 15 series Xiaomi 15 Ultra
Release Date: 2024-10-29 • Status: In sale
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Security Evaluation
1. Device Security
| Criterion
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Value
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Proof
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Comment
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| Known hardware tampering
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Rare
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🔗 Proof
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Bootloader unlock requires official application; large-scale modification is rare
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| Known vulnerabilities
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Rare
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🔗 Proof
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Xiaomi publishes regular security bulletins for HyperOS
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| Prior attacks
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Rare
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🔗 Proof
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Only limited targeted security incidents recorded
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| Updatability
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Very common
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🔗 Proof
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Xiaomi flagship provides up to 5 years of OS and security updates
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| Category Score
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Score: 2 / 3
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2. System Security
| Criterion
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Value
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Proof
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Comment
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| Authentication with other systems
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Full
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🔗 Proof
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Xiaomi Account supports cross-device login, passkey and ecosystem authentication
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| Communications
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Encrypted with up-to-date encryption
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🔗 Proof
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Network transmission uses TLS 1.3 and modern cryptographic algorithms
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| Storage
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Encrypted with up-to-date encryption
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🔗 Proof
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Hardware-backed AES‑256 encryption protected by MiTEE trusted execution environment
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| Category Score
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Score: 1 / 3
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3. User Authentication
| Criterion
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Value
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Proof
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Comment
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| Account management
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Full
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🔗 Proof
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Full account recovery, security verification and device management
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| Authentication
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Secure
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🔗 Proof
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Ultrasonic fingerprint and face unlock, biometric data stored encrypted inside MiTEE
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| Brute-force protection
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Exist
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🔗 Proof
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Progressive lockout and delay after repeated wrong passcode attempts
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| Event logging
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Partial logging
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🔗 Proof
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Partial login activity logs are available; full fine-grained audit log is not provided
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| Passwords
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Require change after setup with complexity requirements
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🔗 Proof
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Password complexity rules enforced; no default weak password
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| Category Score
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Score: 2 / 3
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Technical Specifications
| Property
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Details
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| Operating System & App
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HyperOS 2 (Companion App: Xiaomi Account, Xiaomi Cloud)
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| Hardware (CPU / GPU)
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CPU: Snapdragon 8 Elite • GPU: Adreno 830
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| Memory & Storage
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Memory: 12 GB / 16 GB / 24 GB LPDDR5X • Storage: 256 GB / 512 GB / 1 TB UFS 4.0, non-expandable
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| Power, Battery & Charging
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Battery: 5400 mAh • Power: 90 W wired, 80 W wireless, 10 W reverse wireless • Charging: 90 W wired HyperCharge, 80 W wireless HyperCharge, 10 W reverse wireless charging
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| Display & Camera
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Display: 6.73-inch LTPO AMOLED, 3200 × 1440, 1–120 Hz adaptive refresh • Camera: 50 MP main, 50 MP ultrawide, 200 MP periscope telephoto, Leica optics
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| Sound & Connectivity
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Sound: Stereo dual speakers • Connectivity: 5G, Wi‑Fi 7, Bluetooth 6.0, NFC, USB‑C, IP68
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| Physical (Dimensions & Mass)
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Dimensions: 163.2 × 76.5 × 8.5 mm • Mass: 221 g
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Xiaomi 15 Ultra is Xiaomi’s flagship smartphone running HyperOS 2, powered by Snapdragon 8 Elite. It is equipped with an independent secure chip and TEE trusted execution environment, supporting ultrasonic fingerprint and face unlock with hardware-backed AES‑256 storage encryption. Xiaomi promises up to 5 years of official HyperOS and security patch updates. Bootloader unlock requires official application, so widespread hardware tampering is rare. Xiaomi security team releases regular security bulletins to fix discovered vulnerabilities.
