Is the quality of Apple's SMS sending pictures swallowed?

No, but the picture quality will be automatically adjusted according to the accepted mobile phone configuration.

You mean to send pictures by MMS, which depends on the pixels of the receiver's mobile phone. The picture sent by ipiphone is how you take pictures. When the other party accepts it, it will be decided according to the pixel configuration of the other party's mobile phone.

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IPhone is a series of mobile phone products with iOS operating system launched by Apple from June 5th to1October 9th, 2007. As of March 2022, AppleInc has released 33 mobile phone products, the latest versions are: iPhone 13mini, iPhone 13, iPhone 13Pro, iPhone 13ProMax, iPhone (3rd generation); The mute button of iPhone series products is on the left side of the front of the device; Before the iPhone5, this model used a 30-pin (30-pin) interface, and after the iPhone5 (inclusive), this product used a Lightning interface. Before iPhoneX, the Home button was configured; After the iPhone (inclusive) (except for the second and third generation iPhones), the physical Home key was cancelled. IPhone series models have been equipped with AppleSilicon self-developed chips since iPhone4. TouchID first appeared on the iPhone5s; IPhone6s and iPhone6sPlus added 3DTouch touch control on the screen for the first time; Wireless charging first appeared on iPhone8 and iPhone29Plus models, and Qi(Chee) wireless charging standard was adopted.