Need new tires and tubes help.

Hello,
Trying to get back into biking I have a Caad 8. I might need new tires and tubes any suggestions? I was looking at these but I'm confused on which measurements for my bike and the tubes for them. Can someone help me please? And do I really need them. My Caad8 tires are stock and say 700 x 25.
https://bikecloset.com/product/continental-grand-prix-4-season-road-clincher/?attribute_pa_size=700-x-25mm
Trying to get back into biking I have a Caad 8. I might need new tires and tubes any suggestions? I was looking at these but I'm confused on which measurements for my bike and the tubes for them. Can someone help me please? And do I really need them. My Caad8 tires are stock and say 700 x 25.
https://bikecloset.com/product/continental-grand-prix-4-season-road-clincher/?attribute_pa_size=700-x-25mm
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Posts
GP 4 Seasons are a good all year round tyre so if you were planning on riding in winter these would give you decent puncture protection & grip but would still be suitable for riding in the summer months as well.
If you're just riding when the weather is better Continental GP 4000's are very popular but plenty of choice out there.
As for size if you know that 700x25 will fit your frame you might be best sticking to them. You can get bigger so say 700x28 that will allow you to run them at reduced pressures for increased comfort but I'd be dubious about them being compatible with your frame due to its age.
https://bikecloset.com/product/continental-grand-prix-5000/?attribute_pa_size=23&gclid=CjwKCAjw1v_0BRAkEiwALFkj5rPfDk7S3YDUATeDZh6rG-6_ckKA9LqRSsJgduARBF7Dj1YcZ5qGJRoCXR8QAvD_BwE
They are the updated version of the GP 4000's. We can still get the 4000's over here in the UK but obviously not sure where you are.
Don't have any experience of the 5000's personally but not seen any bad reviews so far.
$34.99 is a decent price TBH.