Which phone has the highest cost-effectiveness with a price of around 3000? Top 10 mobile phone rankings for around 3000 yuan
Around 3000 yuan, there are still many mobile phones to choose from. Let me take a look at the ten most popular mobile phones under 3500...
Replace the 618 with a new phone and take a look at these four models. Each model has high cost-effectiveness, with a minimum of only 1029 yuan
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Low cost mobile phone accessories for blood pressure measurement "within reach"
Technology Daily News (Reporter Zhang Jiaxin) Engineers at the University of California, San Diego have created a low-cost solution to lower the threshold for blood pressure monitoring. They have developed a simple, low-cost clip that uses a smartphone's camera and flash to monitor the user's fingertip blood pressure...