The inWatch π smart watch, which came with Meizu MX4 last month, has really created a lot of precedent: the first round dial design in China, and the traditional watch style; The first product of the same kind to achieve 6-month endurance; It is also the first smart watch to skip tickets due to software problems.
After waiting for 13 days, when the coveted watch client "inHealth" finally came online, we also downloaded and tested it at the first time. Now let's take a look at the actual experience of this smart watch.
parameter
Sapphire silk screen surface, medical grade 316 stainless steel dial, diameter 35mm, thickness 7.7mm, gold, silver and black;
The men's watchband is 115+75mm long and 16mm wide; The women's model is 105+65mm long and 14mm wide (excluding watch buckle);
Built in 12 LED time display lights, vibrator, supporting Bluetooth 4.0, 30m waterproof;
The 2032 button battery is used for power supply, which is officially declared to be in standby for 4-6 months;
It needs to cooperate with the official inHealth application and be compatible with Android devices and iPhone.
Packaging and accessories
▲ The package is not a square box commonly used for wristwatches, but a "chopstick style" strip package.
▲ The words "connect to meizu" are printed on the top of the package.
▲ The back of the box is the QR code used to download the client. The adaptation problem of this app is the official reason for ticket skipping.
▲ Pull out the white "binding" of the outer layer, and the inside is a watch box made of imitation leather.
▲ The watch is surrounded by a simple to a bit crude plastic tray, while the watch itself is much smaller than expected. In addition to the warranty and instructions, the most special thing on the second layer of the watch box is the screwdriver and two button batteries.
▲ Did the engineer deliberately put them into expression (⊙_ ⊙)
▲ The button battery model is Panasonic CR2032. According to official data, its capacity should be 210mAh. In fact, I really doubt that the capacity of this size can really achieve the 4-6 month range advertised?
▲ The attached screwdriver is very small, and the top is very sharp. Please pay attention to safety when using it.
▲ Family photo. The charger and data cable are saved without charging.
Exterior body
▲ At first glance, it really resembles moto 360. Of course, the round dial with a narrow border is almost the same shape
▲ Compared with the wide band of moto 360, the band of inWatch Pi is much thinner.
▲ The dial glass will have a delicate reflective effect under the side light, but it is really easy to get fingerprints.
▲ The glass of the dial is closely attached to the stainless steel frame, and the dial glass is slightly higher than the frame.
▲ Below the 12 scales of the dial are 12 LED lights, and the brand logo is in the middle.
▲ The way to display time is to turn on the light. After being awakened, the light for hours will always be on, and the light for minutes will flash. Since there are only 12 lights, the accuracy can only reach 5 minutes.
▲ The back center is a 3C certification sticker, the top is the π logo of the watch, and the periphery is four fixing screws.
▲ The back is the common concentric circle wire drawing of watches, and the size of the fixing screw is one yard smaller than the screw of the eyeglass frame.
▲ The workmanship of the dial is quite excellent, and it is quite competitive. The official nominal dial width is 3.5 mm, but it is actually a little small (refer to the size of the index finger in the figure above).
▲ There is also metal wire drawing on the side, and the back cover fits fairly flat and tight.
▲ There are traces of chamfering and polishing at the junction with the watchband, but the watchband is not connected to the dial in full width.
▲ There are polished chamfers similar to the iPhone 5s frame on the top and bottom of the side.
▲ The buckle of the watch strap even has a brushed pattern.
▲ Compared with the care of the metal part, the belt part is a little weak. The watchband is not joined with suture, but glued with glue.
▲ The color of internal materials can be seen in the holes on the other side of the belt.
▲ From the angle of the watchband, it can be basically concluded that it should be made of imitation leather. I feel that the workmanship of the dial has been let down. I hope the official version can improve the workmanship of the watchband or provide watchbands made of other materials.
Wearing effect
▲ The belt is moderately hard and soft, and the watch body is not heavy, so it is more comfortable to wear. In addition, the shape is close to the real watch, and the effect is harmonious.
▲ The light side watch will have a beautiful reflective effect.
▲ The LED light on the dial has good brightness, and the time display can be seen even under the large reflection.
▲ The time modeling is as above from the normal perspective. The dial supports the raise hand display and double click display. The raise hand display is adjusted sensitively, and normal shaking can also wake the dial.
Disassembly
▲ The official provides a screwdriver and battery. Unscrew the back cover screws to open the back cover. The white plastic around the battery actually only serves to fix the battery. Internally, the dial itself can be further reduced.
▲ Take off the battery. There are two rows of contacts with unknown functions in the upper left corner, which are covered with insulating tape. The circuit chip should be under the black sticker in the lower right corner.
▲ The back cover is surrounded by a ring of waterproof rubber pads, and the middle is a soft foam pad. In addition to cushioning, it is also used to separate the electrode and the metal back cover.
working principle
InWatch π completes all work through built-in LED lights, motion sensors (accelerometers) and vibrators.
The 12 LED lights display the time in the way that the hour hand is always on and the minute hand is flashing. In order to save power, the time display will be performed only when the action wakes up.
Motion sensors record displacement and posture in the background all the time, and identify whether the user is walking or running, shallow sleep or deep sleep through algorithms. At the same time, it is also used to judge whether the user raises his hand (wants to see the time), so as to control whether the time display lamp lights up.
On the other hand, the vibrator will remind the user after receiving the control information from the mobile phone (when there is an incoming message or alarm clock).
Software
InWatch π seems to put the core of the smart bracelet into the traditional Seiko table. The only interactive work it can do is shake and light up. Except for watching the time, all functions are completed through the app.
The app that makes watches skip tickets can be said to be the most exquisite one among smart watches/bracelets.
To open an application for the first time, you need to register. Three login methods are supported: mobile phone number, microblog, and QQ.
The application will automatically request to open Bluetooth, search the watch and automatically connect. After successful connection, the watch will have a vibration warning.
Then the routine data of gender, height, weight and age are entered.
Main interface (you can view gif dynamic image in the upper right corner of the stamp image)
The home page of the application will display the completion of the three major tasks of "diet, exercise and sleep" of the day, and will display the health advice and the user's operation record timeline.
Task details interface (you can view gif dynamic image in the upper right corner of the stamp image)
Click any item of "diet, exercise and sleep" to jump to the details page, which can be switched by sliding left and right, and the date can be switched by the time wheel at the head.
function
The functions of inWatch π and its app include: time watching, SMS/phone/alarm clock reminding, step counting in the direction of health, sleep monitoring, and diet management. Because the watch has no interactive function, data acquisition and synchronization are performed in the background by default.
When you raise your watch by turning your wrist, the hour light will always be on and the minute light will flash. Since there are only 12 lights, the accuracy can only reach 5 minutes.
The watch can be reminded by SMS and incoming call in the form of vibration and flashing, and the user can choose the reminding method (separate vibration or flashing, or vibration+flashing).
Its alarm clock is integrated into the sleep monitoring function. By setting the sleep and wake up time, the application will pre start the sleep monitoring mode and wake up the user in the form of vibration at the wake up time.
The health function mainly includes three items: "diet, exercise and sleep". The application will automatically generate a three-level health plan of "light, medium and heavy" according to the physiological data entered by the user. Each plan has different requirements for exercise, diet and sleep.
The diet management function requires users to record the food they eat, so as to calculate the nutrient intake, which can calculate the precise intake of fat, protein and other nutrients.
There are different types of packages for breakfast, lunch and dinner, but users can only select the types and portions of ten or so kinds of food, with less precision, and users need to consciously record, which is not meaningful.
The movement step counting function will record the steps at different time points, and calculate the walking distance according to the user's height. The watch will recognize the type of movement of the user, automatically mark it with signs such as walking and running, and display each application period with a timeline. This is great.
It is worth mentioning that the watch can record 7 days of movement data offline, even if you forget to synchronize with your mobile phone for a period of time. The above figure shows the movement data recorded by the watch before the application.
The sleep record records the user's sleep status at different time points in the form of a timeline, and counts the duration of deep and shallow sleep to help users understand their sleep quality. Of course, the premise is to sleep with a watch.
user's experience
InWatch π has five functions: time watching, reminding, step counting, diet and sleep monitoring.
As a smart watch, the first thing to investigate is the time display. The time of inWatch π shows that it is better than ordinary bracelets, but it still lags behind conventional watches.
Watch arousal is mainly based on the rotation amplitude and horizontal action amplitude (acceleration). The measured characteristic is that the reaction of the watch to rotation is more sensitive than that to acceleration, and the time will only be displayed after it is still.
This tuning algorithm allows the watch to be displayed almost when it is raised in daily use, but it will not waste power when walking.
However, the biggest problem is the design of the flashing pointer. After the hour hand is displayed, you have to wait nearly 1 second to see the minute hand, which directly causes the action of looking at the time to take 2-3 seconds, and it is impossible to "glance" at the time. In addition, the accuracy of 5 minutes is not a small problem.
In terms of reminder function, only calls, SMS and alarm clock are supported temporarily. The former is mainly used to prevent missed connections, which is more practical for users who are accustomed to putting their mobile phones in their bags.
In my opinion, the alarm clock vibration reminder is the most existent. At least, it will not be awakened by a "rude" bell when getting up. However, the problem is to wear a watch to sleep, which will be a problem for many users. In addition, considering the battery life, the watch vibration is weak, and there will be some practical problems for users who cannot wake up after a thunderstorm.
The step counting function is fully automatic, so it is easy to use. In addition, the application will calculate the amount of motion in different time periods according to the algorithm, which is a great design.
But because of this design, we cannot directly compare the accuracy of the machine's step counting. However, it accurately recorded the number of steps taken by the author every time he went to the toilet, which was between 122-125 steps (121 steps are needed for manual calculation to go back and forth to the toilet).
Depending on the setting of periodic movement record, users can even use it as a diary to record their status in each period.
Sleep monitoring can only be tested by wearing the bracelet together with other bracelets to sleep. Because the app was launched today, there is no data for the time being, and it will be added later. But I'm afraid few people will sleep with their watches
As a newly launched app, it also has some minor problems. For example, after registration, the height cannot be modified, and after the food data is entered, it cannot be deleted or modified, which is not convenient for users who often use cheap and slippery hands; There is no access to view data 7 days ago.
In addition, the current alarm clock function is not perfect, and there is no independent setting interface. It can only work when the sleep time is changed during sleep detection. In addition, there are small bugs such as manual synchronization failure and digital error.
summary
According to the conventional definition of a smart watch, it should be able to interact directly with users, and even display short messages or reminders. If so, inWatch π is a "watch shape bracelet" device, a bracelet that can display time, or an ordinary watch with the bracelet function.
According to this algorithm, it may not be a qualified smart watch, but the defined boundaries cannot affect its appearance and function. But if you use it as a bracelet, it is probably the best one in the market.
The usability and ease of use of mobile phone connection, time display (for bracelet products), step counting and other functions are quite good. Moreover, the refinement of its app has also refreshed the author's understanding of health device clients.
However, different people have different opinions on its cost performance. Its official price is 399 yuan, and it is 199 yuan when purchased together with the MX4. Whether it is worth buying depends on everyone's needs.
