Xiaomi Watch S4 vs Apple Watch Series 9: A Deep Dive into Smartwatch Value

The smartwatch market offers a spectrum of choices, from premium, feature-rich options like the Apple Watch Series 9 to more affordable alternatives like the Xiaomi Watch S4. This comparison dissects the core differences between these two devices, analyzing where the Apple Watch justifies its higher price tag and where the Xiaomi Watch S4 offers compelling value for budget-conscious consumers.
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🏆 Quick Verdict

For the average user deeply embedded in the Apple ecosystem and prioritizing seamless integration with iPhones, the Apple Watch Series 9 is the clear winner. However, users seeking a functional, stylish smartwatch at a significantly lower price point will find the Xiaomi Watch S4 a capable and attractive option.

PHONES
Phone Names Xiaomi Watch S4 Apple Watch Series 9
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPAHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK
4G bandsLTE1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK
EDGENo-
GPRSNo-
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2024, October 292023, September 12
StatusAvailable. Released 2024, October 29Available. Released 2023, September 22
Body
BuildAluminum alloy frame, stainless steel bezelSapphire crystal front, ceramic/sapphire crystal back, stainless steel frame
Dimensions47.3 x 47.3 x 12 mm (1.86 x 1.86 x 0.47 in)45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)
SIMeSIM (market/region dependent)eSIM
Weight44.5 g (1.59 oz)42.3 g (41mm), 51.5 g (45mm) (1.48 oz)
Display
ProtectionScratch/drop-proof glassSapphire crystal glass
Resolution466 x 466 pixels (~326 ppi density)484 x 396 pixels (~326 ppi density)
Size1.43 inches1.9 inches
TypeAMOLED, 1500 nits (HBM), 2200 nits (peak)Retina LTPO OLED, 2000 nits (peak)
Platform
CPU-Dual-core
Chipset-Apple S9
GPU-PowerVR
OSHyperOS 2watchOS 10, upgradable to watchOS 26.1
Memory
Card slotNoNo
Internal-64GB
Sound
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.3, A2DP, LE5.3, A2DP, LE
NFCYes (market/region dependent)Yes
PositioningGPS (L1+L5), GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO, QZSS, BDS
RadioNoNo
USBNoNo
WLANNoWi-Fi 802.11 b/g/n, dual-band
Features
SensorsAccelerometer, gyro, compass, barometer, heart rate, SpO2Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)
Battery
Charging-Wireless, 0-80% in 45 min
TypeLi-Po 486 mAhLi-Ion 308 mAh
Misc
ColorsBlack, Silver, RainbowGraphite, Silver, Gold, Red
ModelsM2424W1, M2425W1A2982, A2984, A2983, A2985, Watch7,3, Watch7,4
PriceAbout 130 EURAbout 630 EUR
SAR-1.02 W/kg (head)
SAR EU-0.64 W/kg (head)

Xiaomi Watch S4

  • Likely more affordable price point
  • Potential for longer battery life (speculation)
  • May include a camera for quick snapshots

  • Less powerful processor
  • Inferior display technology (likely)
  • Limited app ecosystem

Apple Watch Series 9

  • Powerful Apple S9 chipset
  • Seamless iPhone integration
  • Mature app ecosystem and advanced features

  • High price point
  • Shorter battery life (compared to potential Xiaomi S4)
  • Requires iPhone for full functionality

Display Comparison

Given the lack of specific display data for the Xiaomi Watch S4, a comparison relies on brand positioning. Apple Watch Series 9 likely features an LTPO display, enabling variable refresh rates for improved battery efficiency and smoother animations. The Apple Watch’s display is also known for its excellent color accuracy and high peak brightness, crucial for outdoor visibility. The Xiaomi Watch S4, positioned as a budget option, likely utilizes a standard AMOLED panel, potentially with lower peak brightness and a fixed refresh rate. Bezels are also likely to be more prominent on the Xiaomi device.

Camera Comparison

Neither device is primarily marketed for its camera capabilities. However, the Apple Watch Series 9 does not have a camera. The Xiaomi Watch S4’s inclusion of a camera, even a low-resolution one, offers a niche functionality for quick snapshots, though image quality will be limited. This is a minor differentiator, unlikely to be a deciding factor for most buyers.

Performance

The Apple Watch Series 9 is powered by the dual-core Apple S9 chipset, a significant upgrade over previous generations. This chip enables faster app launch times, smoother animations, and improved performance for demanding tasks. The Xiaomi Watch S4’s processor remains unspecified, but given its price point, it likely utilizes a less powerful chipset. While sufficient for basic smartwatch functions like notifications and fitness tracking, it will likely struggle with complex applications or demanding tasks. The Apple S9’s architecture allows for on-device processing of Siri requests, enhancing privacy and responsiveness, a feature unlikely to be present on the Xiaomi Watch S4.

Battery Life

The Apple Watch Series 9 offers wireless charging and can reach 80% charge in 45 minutes. Battery life is typically around 18 hours with normal use. The Xiaomi Watch S4’s battery capacity and charging speed are unknown. However, given its likely lower power consumption due to the less powerful chipset, it may offer comparable or even slightly better battery life than the Apple Watch Series 9. The lack of fast charging on the Xiaomi Watch S4 could be a drawback for users who need to quickly top up their device.

Buying Guide

Buy the Xiaomi Watch S4 if you need a stylish, functional smartwatch with essential fitness tracking features and are not reliant on the Apple ecosystem. It’s ideal for Android users or those seeking a secondary smartwatch. Buy the Apple Watch Series 9 if you prioritize advanced health monitoring, seamless iPhone integration, a mature app ecosystem, and are willing to pay a premium for the best possible smartwatch experience.

Frequently Asked Questions

❓ Does the Xiaomi Watch S4 support third-party app installations like the Apple Watch?
The Xiaomi Watch S4 likely has a limited app ecosystem compared to the Apple Watch Series 9. While it may support some basic apps, the breadth and depth of available applications will be significantly smaller. The Apple Watch benefits from a mature app store with thousands of options.
❓ Is the Xiaomi Watch S4 compatible with iPhones?
While the Xiaomi Watch S4 may offer basic Bluetooth connectivity with iPhones for notifications, it will not provide the same level of seamless integration as the Apple Watch Series 9. Features like iMessage replies, Apple Pay, and advanced health data synchronization will be limited or unavailable.
❓ How does the health tracking accuracy of the Xiaomi Watch S4 compare to the Apple Watch Series 9?
The Apple Watch Series 9 utilizes advanced sensors and algorithms for accurate health tracking, including ECG, blood oxygen monitoring, and fall detection. The Xiaomi Watch S4 likely offers basic heart rate monitoring and sleep tracking, but its accuracy and range of health metrics may be less comprehensive.