Xiaomi 9
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Revision as of 15:09, 17 October 2025 by Jeandecian (talk | contribs)
Classification
| Xiaomi 9 | |
|---|---|
| Classification | |
| Grade | A- |
| Calculator version | 1 |
| Classification date | 2025-10-17 |
| Information | |
| Name | Xiaomi Mi 9 |
| Brand by Parent | Xiaomi by Xiaomi Corporation |
| Generation | 9th (Mi series) |
| Model(s) | M1902F1G |
| Release date | 2019-02-16 |
| Type/Category | Smartphone |
| Website | [1] |
| Status | End of life |
| More | |
| Dimensions | 157.5 x 74.7 x 7.6 mm |
| Mass | 173 g |
| Operating system | Android 9.0 (Pie), upgradable to Android 10, MIUI 12 |
| Companion App | N/A (Integrated MIUI system services) |
| CPU | Qualcomm Snapdragon 855 (7 nm); Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) |
| GPU | Adreno 640 |
| Memory | 6/8 GB RAM |
| Storage | 64/128 GB (UFS 2.1) |
| Battery | Li-Po 3300 mAh, non-removable |
| Power | 27W wired charging |
| Charging | 27W wired, 20W wireless |
| Display | 6.39 inches, Super AMOLED, 1080 x 2340 pixels, 403 ppi, HDR10 |
| Camera | Triple - 48 MP (wide), 12 MP (telephoto), 16 MP (ultrawide); Single 20 MP selfie camera |
| Sound | Loudspeaker, no 3.5mm jack |
| Connectivity | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct; Bluetooth 5.0, A2DP, LE, aptX HD; GPS, GLONASS, BDS, GALILEO; NFC; Infrared port; USB Type-C 2.0 |
| Device | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Known hardware tampering | Rare | [2] | The bootloader can be officially unlocked, which is a supported feature for developers, not an unintended hardware vulnerability. |
| Known vulnerabilities | Rare | [3] | https://security.xiaomi.com/ Like all major smartphones, occasional software vulnerabilities are discovered but are typically patched through MIUI updates. |
| Prior attacks | None | [4] | There is no widespread public record of successful, targeted attacks specifically on the Xiaomi Mi 9 model. |
| Updatability | Rare | [5] | The device has reached its end-of-life for major Android OS updates. It received its planned MIUI/Android version updates but no longer gets security patches regularly. |
| Category score | 2 | ||
| System | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Authentication with other systems | Full | [6] | Integrates fully with Xiaomi's ecosystem (Mi Cloud, Mi Fit, etc.) using the Mi Account for authentication. |
| Communications | Encrypted with up-to-date encryption | [7] | Supports modern communication protocols like Wi-Fi 802.11 a/b/g/n/ac/ax (WPA3), Bluetooth 5.0, and encrypted cellular data (4G VoLTE). |
| Storage | Encrypted with up-to-date encryption | [8] | Uses full-disk encryption (FDE) based on the Android platform's standard to protect user data at rest. |
| Category score | 1 | ||
| User Authentication | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Account management | Basic | [9] | Requires a Mi Account for full device functionality (Find Device, cloud sync, etc.). Basic account creation and recovery options are available. |
| Authentication | Secure | [10] | Supports multiple secure unlock methods: PIN, Pattern, Password, and a fast and accurate In-display Fingerprint Sensor. |
| Brute-force protection | Exist | [11] | The device implements a timing delay after several failed unlock attempts, mitigating brute-force attacks. |
| Event logging | Partial logging | [12] | Security-relevant events like failed unlock attempts are logged internally but may not be fully accessible to the user. |
| Passwords | Require change after setup | [13] | The device forces the user to set a secure screen lock (PIN/pattern/password) during initial setup. Complexity requirements are basic (e.g., minimum length). |
| Category score | 2 | ||
| Grade | A- |
|---|
