Apple's latest smartwatch, Apple Wacth, is not only the most popular X weapon in the near future, but also the most widely discussed product in the industry. Some people said that their system operation is smooth, visual inspection can sell the amount of smart watches last year; there are also friends who are "sour" are not really wearable devices; more netizens directly put words, "I will not buy anyway. !".
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You know, every time Apple launches a new product, it will always encounter a variety of irony. With the arrival of Apple Wacth, the sound of the spit also rushed. Although the slot is available year after year, this time is extraordinarily.
Slot one: too ugly
As a consumer electronics product, the shape is very important. Many people think that the appearance and touch of the Apple Watch has been very good, but the appearance evaluation of the product is always "the benevolent sees the wise and sees wisdom." The technology masters will feel that it is “unique and strangeâ€, and those who prefer the traditional watch design are “disgusted†and it is not high enough.
Also, this ..... intensive phobia may not be happy.
Slot 2: Answer the phone outdoors, or use the iPhone.
Many people are very much looking forward to the call function of smart watches, of course, Apple Wacth also supports. However, in outdoor use, the call experience is more subtle, and the volume is turned to the maximum, but the sound is relatively small, and there is noise.
There should be speakers and microphones for wearable designs. I don't know what solution Apple Wacth uses.
It is worth mentioning that Apple Wacth is currently unable to insert a SIM card, and it is necessary to connect to the iPhone.
Slot 3: WeChat: Can't say or listen
The lazy voice of lazy people can't be used on Apple Wacth. Apple Wacth directly prompts "Please browse this information on iPhone".
But support voice conversion into text, want to input text directly... Unfortunately, there is no keyboard. (The same is true for SMS, you can only select voice control or default reply)
Most apps just come to reveal a face
In addition to WeChat, more operations including news app, Taobao, M & A and other applications need to be done on the iPhone. Often when you look forward to the next screen, you will pop up the text “Please browse this information on the iPhoneâ€. .
Slot 4: Even if you have a difference in your life, it will affect the life of the iPhone.
Wireless functionality has always been a major consumer of the iPhone. And to use the full functionality, Apple Watch needs to be connected to the iPhone via Bluetooth or Wi-Fi.
So, is this the rhythm of taking a few more boards?
From the usual situation, these criticisms will not affect Apple's final sales, but this time the big guys will also "buy"? It is understood that Apple is stepping up testing iOS8.4, hoping to improve Apple Watch Issues such as compatibility adaptation with the iPhone.
Slot 5: Hey, this is a bit funny - "Tattoo Door"
From the "battery door" of the earliest iPod to the "antenna door" of the iPhone 4, to the "curved door" of the iPhone 6 Plus, this time, Apple Wacth is more "comfortable" and puts on the "tattoo door."
"Tattoo Door": Wrist tattoo or skin is too dark to cause malfunction
Netizen Tucao: Black brothers can't use Apple Watch?
Heart rate measurement is one of the main health features of Apple Watch, but this feature has failed some users.
According to foreign media reports, many users with tattoos have reported that they may have problems with heart rate measurement, abnormal unlocking function or even loss of communication connection when using Apple Watch. And there are pictures to prove.
In addition, the unlock function: Normally, after unlocking, no matter how the user flips the wrist, the Apple Watch will automatically recognize and not lock. However, these tattooed friends bring up: unlock - turn your wrist, automatically lock - unlock - lock...
Why?
Cause one: The color of the tattoo may have misled the sensor of the Apple Watch. In addition, dark tattoos have a large effect and light color has a small effect.
It is understood that the human blood is red, which reflects red light and absorbs green light. Apple Watch uses green LED light to hit the human wrist. By observing the reflected shadow, it monitors the blood flowing through the wrist at a certain moment. When the heart beats, the blood flowing through the wrist is more; in the gap of the beat, the blood flowing through the wrist is less. (For more information on the Apple Watch heart rate sensor, please see the next page)
For example, if the tattoo is dark red, the light emitted by the Apple Watch is absorbed by the skin when it is not in the blood vessels of the human body, which may result in uncertainty.
Reason 2: Tattoo pigments usually contain metallic substances such as mercury, copper, and nickel, which may interfere with the operation of the Apple Watch sensor.
Apple Watch method of measuring heart rate
Apple Watch's heart rate sensor uses photoplethysmography. This technique seems complicated and difficult to understand. In fact, the principle is simple: the blood is red because it reflects red light and absorbs green light. The Apple Watch uses a green LED light with a light-sensitive photoreceptor to detect blood flow through the wrist at any point in time. When the heart beats, the blood flowing through the wrist will increase, and the absorbed green light will increase; during the heartbeat interval, it will decrease. With hundreds of flashing LEDs per second, Apple Watch can calculate the number of heartbeats per minute, which is the heart rate.
Heart rate sensors also use infrared light. Apple Watch uses this method to measure your heart rate every 10 minutes. However, if the readings provided by the infrared system are not sufficient, the Apple Watch will switch to the green LED. In addition, a specially designed heart rate sensor can increase the brightness and sampling rate of the LED to compensate for the weak signal.
Want to be more accurate and need to wear it correctly
Apple's official instructions show that even under ideal conditions, Apple Watch can't guarantee that every heart rate test is accurate and reliable for everyone. For a small number of wearers, you may not be able to get any heart rate readings for different reasons. However, there are some attempts to help Apple Watch get the most consistent and reliable heart rate readings.
For example, if you wear it too loose and the Apple Watch slides over your wrist, the sensor may not be able to read the heart rate. Therefore, users need to stick Apple Watch to their wrists.
What else will affect the reading?
There are many factors that affect the reading of Apple Watch heart rate sensors. Skin blood flow is one of them. Skin blood flow is a peculiar way of describing the amount of blood flowing through the skin. Each person's skin blood flow is very different, and it is also affected by the environment. For example, if you exercise in cold weather, the skin blood flow to the wrist may be so low that the heart rate sensor cannot take readings. Exercise is another factor, and rhythmic movements (such as running or cycling) are more accurate than irregular movements (such as tennis or boxing).
If you are unable to obtain consistent readings for any of the above reasons, you can connect your Apple Watch wirelessly to an external heart rate monitor, such as a Bluetooth chest strap.
Apple Watch has many ways to measure activity and exercise, and heart rate is just one of them. It chooses the most appropriate way based on the movements the user has made. For example, when a user runs indoors, it uses an acceleration sensor; when the user is riding outdoors, it uses the iPhone's GPS. Even if it is not in a special sports environment, it can still measure the amount of activity per day.
"As our first personal device designed to be worn on the body, in any way, the Apple Watch has achieved our closeness to you as never before." - This is the slogan given by Apple. However, how the actual experience feels or the user has the final say, isn't it?
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