it's almost easy to stitch denim, tweed, and other thick fabrics

Brother CS5055 vs CP60X There is no single way to create tension.And at this price, you don't get automatic tensioning. You won't know what works until you try it out on small pieces of fabric before sewing it on your project. If the machine is not threaded correctly or the bobbin is in the wrong place, resetting the tension will not fix the problem. If you don't know how to thread these new brothers correctly, you may have trouble, and the tension may look wrong. Most of the time, the machine is set to 4, which is for cotton fabrics of medium weight. From there, you need to know how to build tension.
Yes, it can sew denim if you set it up the right way. I haven't stitched velvet yet, but there are many ways to stitch thicker things. I am now using it to sew outdoor cushions, and it works great with the fabric. I've also sewn vinyl, and it did a great job.
Digital Sewing Machine This machine has a button to go backwards, an LCD screen that is easy to read, and a work area that is lit by very bright LEDs. There are also seven great sewing feet to help you with a variety of stitching techniques. The CP60X will have you making DIY projects and clothes in no time, thanks to its easy-to-use needle threading mechanism, Quick-Set bobbin, and very bright LED lighting in the work area. Needle Threader, New and Better: The automatic 2-step needle threader reliably puts the thread through the needle and is now easier to use than ever. EQUIPMENT INCLUDED: Among other things, the CP60X has 7 sewing feet. Because it was only made to be sold in the US at 120 volts, any other use or sale of it voids the warranty. Durable metal frame construction: Your machine's sturdy metal frame and high-quality construction mean that it can handle any project, from thick denim to heavy quilts. A fixed needle bar keeps the needle in place while you work, so you can make stitches that are neater and more straight. The CP60X computerised sewing machine can do a lot of different things and is still small and strong. The CP60X has 60 built-in stitches, including seven kinds of auto-size buttonholes that can be made in just one step. With the clear LCD screen and easy-to-use stitch picker, choosing a stitch is as easy as pressing a button. With the great feed mechanism and fixed needle bar, it's almost easy to stitch denim, tweed, and other thick fabrics. Use drop feed dogs, try free-motion sewing, or use the free arm to make it easy to stitch skinny jeans, cuffs, and sleeves.
Fixed needle bar and metal frame: Your machine has a strong metal frame that can handle any job, and the needle is held in place while you work for neater stitches and straighter lines. The CS5055 computerised sewing machine is perfect for both beginners and experts. Using an LCD screen, you can choose from 60 built-in decorative stitches, such as 7 different types of auto-size buttonholes, to add unique touches to your clothing. With the excellent feed system, it's almost easy to stitch denim, tweed, and other thick fabrics. For a cleaner finish, a fixed needle bar keeps the needle from moving while stitching, and a high-tech needle threading system makes it easy to thread the needle.