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Details the items included in the package, such as the smart watch, charging cable, and quick start guide.
Provides instructions for assembling the watch bands and charging the device before initial use.
Guidance on proper watch placement and band tightness for all-day wear and accurate heart rate tracking.
Steps to install the Letsfit app, register an account, and connect the watch via Bluetooth.
Overview of the Letsfit app's summary, historical data, and device customization sections.
Details on using the function button and touch screen for watch operations and customization.
How to access notifications, quick settings, and other primary interfaces through screen gestures.
Tracks daily activity data, monitors heart rate, and measures blood oxygen levels.
Tracks exercise data in various sports modes and allows setting training goals.
Enables making/answering calls, managing contacts, and viewing call history via Bluetooth.
Allows setting alarms and receiving message notifications from connected apps.
Controls phone music playback and allows setting personalized reminders through the app.
Resolves common problems with re-pairing the watch, Bluetooth connectivity, and receiving notifications.
Explains watch disconnection causes and provides guidance on blood oxygen measurement accuracy.
Covers the one-year warranty and essential safety guidelines for device usage and care.
Provides warnings on device handling, battery safety, and health precautions related to usage.
Discusses measurement limitations, potential skin irritation, and best practices for wear.
Instructions for cleaning and maintaining the watch and its bands for optimal performance and hygiene.
The E22 Smart Watch is a versatile wearable device designed to track daily activities, monitor health metrics, and provide convenient smartphone integration. It serves as a personal assistant on your wrist, offering a range of functions from fitness tracking to call management and music control.
The E22 Smart Watch primarily functions as a comprehensive activity and health tracker. It allows users to monitor their daily activity data, including steps, distance, and calories burned. A key health feature is its ability to monitor heart rate in real-time, with data viewable on the watch interface or through the accompanying Letsfit app. The watch also includes a blood oxygen level measurement function, providing insights into this important health metric. For fitness enthusiasts, the E22 offers robust sports tracking capabilities, supporting various workout modes. Users can set training goals for time, distance, or calories burned before starting an exercise. For outdoor sports, the watch can connect to GPS via the Letsfit app on a smartphone, displaying movement tracks in the training record.
Beyond health and fitness, the E22 Smart Watch enhances daily convenience with several smart features. It supports Bluetooth phone calls, allowing users to make and answer calls directly from their wrist when connected to their smartphone. Incoming calls can be answered or declined with a simple tap on the watch screen. Users can also dial numbers or select contacts from a pre-set "Favorite Contacts" list in the app. The watch provides message notifications for various apps like Facebook, Twitter, and Instagram, vibrating and displaying content on the screen. Alarm settings are customizable, enabling users to add, enable, or disable alarms directly on the watch. Reminder functions can be set via the Letsfit app, causing the watch to vibrate at specified times. Additionally, the E22 allows for controlling music playing on a connected smartphone, offering basic playback controls. Other utility functions include a clock with alarm, countdown timer, and stopwatch, as well as a weather forecast feature that updates via the phone's network. A built-in flashlight function is also available.
The E22 Smart Watch is designed for intuitive interaction through both a function button and a touch screen. The function button serves multiple purposes: a short press wakes the screen, returns to the home screen, or accesses the function list, and can also pause/resume a sport. A long press powers the watch on or off. The touch screen allows for swiping to navigate between different interfaces and tapping to enter functions. Swiping right on the screen typically returns to the previous interface. Users can also customize the home screen by pressing and holding it for two seconds, then swiping left/right to choose a watch face and tapping to confirm.
For optimal performance, especially for heart rate tracking, the watch should be worn horizontally, a finger's width below the wrist bone. During exercise, wearing the watch slightly higher on the wrist and snug (but not constricting) can improve heart rate signal accuracy. When measuring blood oxygen, it's recommended to wear the watch two fingers below the wrist bone, keep the arm flush with the chest, and the watch screen facing up, remaining still for accurate data.
Pairing the watch with a smartphone is essential for unlocking its full potential. This involves installing the Letsfit app, registering an account, and then pairing the watch. Users can either scan a QR code displayed on the watch or manually select "E22" in the app to pair. Bluetooth on the smartphone must be enabled, and the watch should be within 0.5 meters of the phone during pairing. Once connected, the app provides a "Device" page where various settings can be customized, including watch faces, notification alerts, do not disturb mode, night mode, brightness, alarms, sedentary alerts, and weather forecasts.
Proper maintenance of the E22 Smart Watch is crucial for its longevity and to prevent skin irritation. Regular cleaning of the wrist and the watch is recommended, especially after sweating during exercise or exposure to substances like soap or detergent. The watch should not be washed with household cleansers; instead, a soapless detergent, thorough rinsing, and wiping with a soft towel or napkin are advised.
While the watch is water-resistant, it's important to ensure the band and wrist are thoroughly dry after getting wet (e.g., from sweating or showering) before putting the watch back on. This helps prevent skin irritation. Users should avoid bringing the device into contact with sharp objects to prevent scratches or other damage. For light-colored arm bands, minimizing direct contact with dark-colored clothing is recommended to prevent color transfer.
To maintain optimal health and safety, it's important to be aware of certain guidelines. The watch should not be worn too tightly, as this can restrict blood flow and affect heart rate signals. If the device feels hot, warm, or causes any skin irritation or discomfort, discontinue use and consult a doctor. The watch should not be exposed to extreme temperatures or open flames. The device is not a toy and should be kept out of reach of children to prevent choking hazards from small parts.
The device contains a lithium-ion battery, and specific warnings apply: do not disassemble, modify, remanufacture, puncture, or damage the device or batteries. The non-user-replaceable battery should not be removed or attempted to be removed. The device or batteries should not be exposed to fire, explosion, or other hazards.
Health-related warnings include consulting a physician before use if you have a pacemaker or other internal electronic device, or before beginning/modifying any exercise program. The optical wrist heart rate monitor emits green light and flashes occasionally, so individuals with epilepsy or sensitivity to flashing lights should consult their physician. The data provided by the watch (heart rate, blood oxygen, activity metrics) is for general fitness and wellness purposes only and is not intended for medical diagnosis, monitoring, treatment, cure, or prevention of any disease. If skin irritation persists after 2-3 days of not using the device, consult a doctor. Giving the wrist a break by removing the band for an hour after extended wear can help prevent irritation from prolonged rubbing and pressure.
General| Screen Size | 1.3 inches |
|---|---|
| Resolution | 240 x 240 pixels |
| Operating System | Proprietary |
| Display Type | LCD |
| Charging Time | 2 hours |
| Compatibility | Android 4.4 or iOS 8.0 and above |
| Sensors | Heart rate monitor, accelerometer |
| Activity Tracking | Steps, distance, calories, sleep |
| Notifications | Call, SMS |
| Sports Modes | 9 sports modes (walking, running, cycling, hiking, climbing, badminton, dynamic cycling, treadmill, yoga) |
