Adafruit ItsyBitsy M4 Express featuring ATSAMD51

Adafruit ItsyBitsy M4 Express featuring ATSAMD51

Marsoni

M251S

$17.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit ItsyBitsy M4 Express featuring ATSAMD51Introducing the Adafruit ItsyBitsy M4 Express, a compact powerhouse that sits between the Feather and Trinket in size but offers incredible performance. Powered by the Microchip ATSAMD51 processor, this microcontroller board features a 120 MHz Cortex M4 chip with floating point support, making it an ideal choice for projects that need both small form factor and high performance. Key Features: Processor: 120 MHz Cortex M4 with floating point support,

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Just bought my second one for my German shepherd. 1st one I bought a year ago. She managed to pop it within a few days. She still was able to play with it by grabbing ahold of the straps. Takes it everywhere. We call it her tether ball. Should've seen her when we got the new one out of the box. Hasn't left it alone since.

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Reviewed in the United States on April 14, 2026

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maggie medina

Louisville, US

★★★★★ 4

Keeps him busy. Puppy proof

Size: 6 Inch, Color: Independence Day

Thankfully I bought 2. One of the pumps broke as I was trying to blow up. That is the reason i did not give then 5 stats. This is a great toy for my puppy. Keeps him entertained and is pretty sturdy.

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Reviewed in the United States on April 30, 2026

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Amazon Customer

Carnegie, US

★★★★★ 5

Great for dog self play

Size: 6 Inch, Color: Red, Size: 6 Inch, Color: Red

So much fun for my puppy. Easy to grab and throw for him to play alone. Durable for a medium dog. This is his favorite toy. I also bought one for my friends cattle dog puppy who went bonkers with it. Yet her dog liked to chew the tags off. So I wouldn’t recommend for chewers.

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Reviewed in the United States on May 27, 2026

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Dawn L

Waukegan, US

★★★★★ 5

Fun to fetch

Size: 5 Inch, Color: Red, Size: 5 Inch, Color: Red

Perfect size for my 1 yr old Cavapoo that is ball obsessed. This ball is fun to toss around in the yard to exercise and wear out my energetic boy. Perfect for after my work day when I don’t have the energy to match his energy level. He gets to run and chase and I can enjoy his playtime too. Overall the ball is durable and I have confidence it will last for a very long time. We have 2 sizes, small and medium, for my 30 pound athletic pup. He enjoys both equally.

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Reviewed in the United States on April 21, 2026