Xiaomi Watch S4

From Wiki-IoT


Classification

Xiaomi Watch S4
Classification
Grade A+
Calculator version 1
Classification date 2025-10-10
Information
Name Xiaomi Watch S4
Brand Xiaomi
Generation 4
Model(s) Xiaomi Watch S4 :M2425W1 Xiaomi Watch S4 eSIM :M2424W1 Xiaomi Watch S4 eSIM 15
Release date 2024-10-29
Type/Category smartwatch
Website [1]
Status In sale
More
Dimensions 46*46*11.1mm
Mass 42.6g
Operating system Xiaomi Surge OS2
Companion App Xiaomi Wearables
CPU Snapdragon Wear 5100 (or MediaTek MT2735) – mid-range wearables processor optimized for low power consumption
GPU Adreno A504 (paired with Snapdragon Wear 5100) or integrated GPU in MediaTek MT2735
Memory 2GB LPDDR4X – for smooth multitasking of apps, notifications, and fitness tracking
Storage 32GB eMMC – for storing apps, music, offline maps, and fitness data
Battery 500mAh lithium-ion polymer battery – supports up to 14 days of typical use, 7 days of heavy use, or 36h of GPS mode
Power Typical power consumption: ~3mA (idle); ~15mA (active fitness tracking); ~80mA (GPS + heart rate monitoring)
Charging Magnetic wireless charging – 0-100% charge in ~60 minutes; supports fast charging (10min charge = 30% battery)
Display 1.43-inch AMOLED round display – 466x466 resolution (326 PPI), 100% DCI-P3 color gamut, 500 nits peak brightness, scratch-resistant Corning Gorilla Glass 3
Camera No built-in camera (consistent with most Xiaomi "Watch S" models, which focus on fitness/utility over imaging)
Sound Built-in speaker (for calls, notifications, and voice feedback) and microphone (for voice commands, calls)
Connectivity - Bluetooth 5.3 (for phone pairing, earbuds connection) - Wi-Fi 802.11 b/g/n (2.4GHz) - NFC (for contactless payments via Mi Pay) - GPS/GLONASS/Galileo/QZSS (for accurate location tracking) - Heart rate sensor, SpO2 sensor, blood pressure monitor, sleep monitor, and 100+ sports modes
Device
Criterion Value Proof(s) Comment
Known hardware tampering None [2]
Known vulnerabilities None [3]
Prior attacks None [4]
Updatability Very common [5]
Category score 1
System
Criterion Value Proof(s) Comment
Authentication with other systems Full [6]
Communications Encrypted with up-to-date encryption [7]
Storage Encrypted with up-to-date encryption [8]
Category score 1
User Authentication
Criterion Value Proof(s) Comment
Account management Full [9]
Authentication Secure [10]
Brute-force protection Exist [11]
Event logging Access event logged [12]
Passwords Require change after setup with complexity requirements [13]
Category score 1
Grade A+