Meizu Mblu 21
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Security Grade
Calculator v1
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MEIZU Mblu 21
Brand: Meizu (Parent: meizu by Meizu Technology Co.,LTD) Category: Smartphone • Model / Gen: MEIZU Mblu 21 Series Mblu 21 Release Date: 2023-11-30 • Status: In sale Classification Date: 2025-09-24 • Official Website | |
Contents
Security Evaluation
1. Device Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | None | 🔗 Proof | |
| Known vulnerabilities | None | 🔗 Proof | |
| Prior attacks | None | 🔗 Proof | |
| Updatability | Very common | 🔗 Proof | |
| Category Score | Score: 1 / 3 | ||
2. System Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Partial | 🔗 Proof | |
| Communications | Encrypted with up-to-date encryption | 🔗 Proof | |
| Storage | Encrypted with up-to-date encryption | 🔗 Proof | |
| Category Score | Score: 2 / 3 | ||
3. User Authentication
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Basic | 🔗 Proof | |
| Authentication | Absent | 🔗 Proof | |
| Brute-force protection | Absent | 🔗 Proof | |
| Event logging | Partial logging | 🔗 Proof | |
| Passwords | Require change after setup with complexity requirements | 🔗 Proof | |
| Category Score | Score: 3 / 3 | ||
Technical Specifications
| Property | Details |
|---|---|
| Operating System & App | (Companion App: ) |
| Hardware (CPU / GPU) | CPU: MediaTek Dimensity 7300 (octa‑core, 4×A78 up to 2.5 GHz + 4×A55 up to 2.0 GHz, 4 nm) • GPU: Mali‑G615 MC2 |
| Memory & Storage | Memory: 8 GB / 12 GB LPDDR4X (RAM expansion via virtual memory supported) • Storage: 128 GB / 256 GB / 512 GB UFS 2.2; microSD slot (hybrid) up to 1 TB |
| Power, Battery & Charging | Battery: 5000 mAh typical • Power: 45 W wired charging • Charging: USB‑C, PD/QC compatible; reverse wired charging supported |
| Display & Camera | Display: 6.67-inch AMOLED, 2400×1080 (FHD+), 120 Hz refresh, 1000+ nits peak, 10-bit color, 1920 Hz PWM dimming • Camera: Rear 64 MP main + 2 MP depth; Front 16 MP |
| Sound & Connectivity | Sound: Dual speakers; 3.5 mm headphone jack; single mic with noise reduction • Connectivity: 5G SA/NSA, Wi‑Fi 6, Bluetooth 5.2, NFC, GPS/GLONASS/Beidou/Galileo, USB 2.0 Type‑C, side‑mounted fingerprint reader |
| Physical (Dimensions & Mass) | Dimensions: • Mass: |
