Cái smartwatch này mỏng quá, có thể add thẻ thang máy NFC: Oppo Watch S

Oppo Watch S: Detailed Review & Analysis

Key Concepts:

• RTOS (Real-Time Operating System): An operating system designed for time-critical applications, offering efficiency and longer battery life compared to Android-based systems.
• Color OS Watch: Oppo’s proprietary operating system for smartwatches, based on RTOS, enabling compatibility with both Android and iOS.
• AMOLED (Active-Matrix Organic Light-Emitting Diode): A display technology known for vibrant colors, high contrast, and energy efficiency.
• 5 ATM Water Resistance: Indicates the watch can withstand pressure equivalent to 50 meters underwater, suitable for swimming and showering.
• GPS Two-Band: A GPS technology that utilizes two frequency bands for improved accuracy and signal strength, especially in challenging environments.
• NFC (Near Field Communication): A short-range wireless technology enabling contactless payments and data exchange.

1. Design & Build Quality

The Oppo Watch S distinguishes itself with its remarkably thin and lightweight design, prioritizing comfort, even during sleep. The reviewer contrasted it favorably with the Huawei Watch GT6 (non-Pro), immediately noting the significant difference in thickness and wrist feel. While the materials aren’t premium (featuring standard scratch-resistant glass and stainless steel frame – not titanium), they are deemed sufficient for typical smartwatch users. The design aesthetic is described as simple, elegant, and uncluttered, reminiscent of the Huawei GT6. The reviewer particularly praised the nylon strap version for its comfort and lightness, noting a price difference of a few hundred thousand VND compared to the plastic strap option. The watch is available in a single size, which the reviewer believes is versatile enough for most wrist sizes.

2. Display Specifications

The Oppo Watch S features a 1.43-inch AMOLED display. The screen brightness reaches a maximum of 1500 nits in normal use, and Oppo claims it can boost to 3000 nits in outdoor sunlight during workout mode. The display boasts a smooth 60Hz refresh rate. The user interface (UI) is visually appealing, mirroring the design language of the Oppo Watch X series, creating a premium feel. The screen resolution is high, and the reviewer reported no complaints regarding image quality or clarity.

3. NFC Functionality & Compatibility

A key feature of the Oppo Watch S is its integrated NFC capability. Importantly, even when paired with an iPhone, the watch allows adding NFC cards, such as building access cards and transit passes. This contrasts with Huawei watches, which require pairing with an Android phone for NFC card addition. This functionality is highlighted as a significant advantage for users who desire convenient access to buildings or transportation.

4. Sports & Fitness Tracking

While the reviewer hadn’t extensively tested the sports features due to time constraints, they confirmed the watch supports a comprehensive range of tracking modes. Oppo differentiates itself by including tracking for racquet sports like tennis and badminton. The watch also incorporates dual-band GPS for enhanced location accuracy. The reviewer positions the Oppo Watch S as a competitive alternative to offerings from Fitbit and Huawei Watch GT series, contributing to a more dynamic RTOS smartwatch market. The watch is 5 ATM water-resistant, enabling tracking during swimming.

5. Battery Life & Performance

Despite its slim profile, the Oppo Watch S delivers impressive battery life thanks to the RTOS. Oppo claims up to 7 days of typical usage, potentially extending to 10 days with conservative use and power-saving modes. During the reviewer’s testing (without extensive sports tracking or overnight wear), the watch retained 44% battery after 5 days. The reviewer cautioned that battery life would likely be shorter with sleep tracking enabled.

6. Software & User Interface (Color OS Watch 7.1)

The Oppo Watch S runs Color OS Watch 7.1, an RTOS-based operating system. The reviewer found the OS stable and functional for everyday smartwatch tasks, including sports tracking, notifications, and call handling. However, a noted drawback is the inconsistent display of app icons in notifications. Some apps (e.g., Grab, The Gioi Di Dong, Lazada) display a generic icon, while others (e.g., Telegram, Messenger, Facebook, Outlook) show their respective icons. This issue mirrors a previous problem with Huawei watches.

7. Call Functionality & Limitations

The reviewer tested call functionality, successfully making and receiving calls directly from the watch. However, initial attempts to answer Zalo calls were unsuccessful, though subsequent attempts worked, albeit without displaying the caller’s name. Facebook Messenger calls initially showed a notification but lacked a button to answer the call. The watch lacks Google Maps and voice-to-text input in Vietnamese due to the RTOS.

8. Market Positioning & Pricing

The Oppo Watch S is positioned as a compelling alternative to Apple Watch for iPhone users who prioritize battery life and a round face. It competes with options like Fitbit Versa and Huawei Watch GT6 in the RTOS segment. The reviewer estimates a retail price of around 5 million VND, considering it a reasonable value for the features offered. The watch is newly available in Vietnam.

Notable Quotes:

• “Ngay lập tức mình thấy được cái sự khác biệt một cách rất là rõ ràng về cái độ mỏng của nó cũng như là cái cảm giác trên cổ tay.” (I immediately felt a very clear difference in its thinness and the feeling on my wrist.) – Regarding the comfort compared to the Huawei Watch GT6.
• “Nếu như mà các bạn nào mà thích cái việc các bạn có thể đeo một cái đồng hồ trên cổ tay để mà tít tít tít đi ra vô nhà ở chung cư cho nó tiện á thì Oppo S này nó rất là hợp lý.” (If any of you like the convenience of wearing a watch on your wrist to easily enter and exit your apartment building, then the Oppo S is very reasonable.) – Highlighting the NFC functionality.

Synthesis/Conclusion:

The Oppo Watch S presents a strong value proposition in the RTOS smartwatch market. Its slim design, comfortable fit, long battery life, and compatibility with both Android and iOS are key strengths. While the software has minor notification inconsistencies and lacks certain features like Google Maps and Vietnamese voice input, the watch delivers a solid overall experience, particularly for users seeking a stylish, functional, and affordable smartwatch. Its competitive pricing and availability in Vietnam make it a noteworthy contender alongside established brands like Fitbit and Huawei.