Vivo iQOO Z7i

Classification

Vivo iQOO Z7i
Classification
Grade	B
Calculator version	1
Classification date	2025-10-10
Information
Name	iQOO Z7i 5G Smart Phone
Brand by Parent	iQOO by vivo Communication Technology Co., Ltd.
Generation	Z7i Series (Part of iQOO Z Series)
Model(s)	V2304A (Main model for Chinese market; regional variants may exist)
Release date	2023-03-01
Type/Category	5G Smart Phone
Website	[1]
Status	End of life
More
Dimensions	Approximately 164.81 mm (L) × 76.35 mm (W) × 8.15 mm (H)
Mass	Approximately 195 g
Operating system	Pre-installed OriginOS 3 (Based on Android 13)
Companion App	iQOO Life, vivo Service, vivo Official Website, iQOO Security Center
CPU	Qualcomm Snapdragon 695 5G (2×Cortex-A78 2.2GHz + 6×Cortex-A55 1.7GHz, TSMC 6nm process)
GPU	Qualcomm Adreno 619
Memory	8GB / 12GB LPDDR4X (Dual-channel, non-expandable)
Storage	128GB / 256GB UFS 2.2 (Non-expandable; supports RAM Expansion Technology up to 8GB)
Battery	6000mAh (Typical capacity) lithium polymer battery
Power	44W fast charger (Input: 100-240V ~ 50/60Hz; Output: 11V/4A)
Charging	Supports 44W wired fast charging; no wireless charging
Display	6.78-inch LCD straight screen, 2400×1080 (FHD+) resolution, 120Hz adaptive refresh rate, 480Hz touch sampling rate, 450 nits typical brightness, 16.7 million colors, DC dimming support
Camera	- Rear: 50MP main camera (OV50A, f/1.85 aperture, PDAF) + 2MP depth camera (f/2.4 aperture) - Front: 8MP selfie camera (f/2.0 aperture)
Sound	Stereo dual speakers, Hi-Res Audio certification, built-in microphone
Connectivity	- Network: 5G NR, Wi-Fi 5 (802.11ac), Bluetooth 5.1 - Others: NFC, Infrared remote control - Port: USB Type-C (2.0), no 3.5mm headphone jack

Device
Criterion	Value	Proof(s)	Comment
Known hardware tampering	Rare	[2]	Smartphones feature highly integrated hardware; disassembly requires professional tools and voids the warranty. Ordinary users face high tampering barriers, and public hardware tampering cases are extremely rare.
Known vulnerabilities	Rare	[3]	iQOO releases regular system updates to patch hardware-related vulnerabilities. There are few public records of high-risk hardware vulnerabilities specific to the iQOO Z7i.
Prior attacks	None	[No public authoritative links]	No large-scale hardware-targeted attack incidents have been reported for the iQOO Z7i. Most user security issues are software-level and unrelated to the device’s hardware.
Updatability	Very common	[4]	iQOO provides sustained system updates for the Z7i, including Android security patches, vulnerability fixes, and minor feature optimizations, with a clear update cycle during the support period.
Category score	2

System
Criterion	Value	Proof(s)	Comment
Authentication with other systems	Partial	[5]	Supports linkage authentication and data synchronization with other vivo/iQOO devices via a vivo Account. Lacks full cross-platform authentication capabilities outside the vivo ecosystem.
Communications	Encrypted with up-to-date encryption	[6]	Wi-Fi supports WPA3 encryption; Bluetooth 5.1 adopts AES-CCM encryption; 5G communication complies with 3GPP-standard encryption protocols (e.g., AES).
Storage	Encrypted with up-to-date encryption	[7]	OriginOS 3 (based on Android 13) enables File-based Encryption (FBE) by default, using the AES-256 encryption algorithm, which meets current security standards.
Category score	2

User Authentication
Criterion	Value	Proof(s)	Comment
Account management	Full	[8]	Supports comprehensive management of local accounts and vivo accounts, including creation, deletion, permission assignment (administrator/standard user), and account recovery.
Authentication	Secure	[9]	Supports multiple secure authentication methods: password, PIN, side-mounted fingerprint recognition, and 2D face recognition.
Brute-force protection	Exist	[10]	The system automatically locks the device after multiple incorrect authentication attempts (e.g., 5 failed password entries), effectively resisting brute-force attacks.
Event logging	Access event logged	[11]	Key access events (e.g., successful login, authentication failure, account lockout) are recorded in the system log, which can be viewed via developer tools.
Passwords	Require change after setup	[12]	Initial password/PIN setup is mandatory during first boot, but there is no mandatory regular password change requirement. Users can manually configure password complexity rules (e.g., length, mixed characters).
Category score	2

Grade	B