So after some extensive researching, I am leaning towards the VitaClay due to being certified free of toxins and the manufacturer being very open with testing results. The information on whether CrockPot brand crockpots have lead or not was sketchy at best. People online who tested them at home claim to have detected traces of lead in them.
The manufacturer of CrockPot brand answered a question about the specific crockpot I'm looking at on Amazon:
Q: Is the pot lead free?
A: We continue to proactively test our products for lead and other toxic metals, with the results continuing to come back favorably. Lead is not an additive in the Crock-Pot® slow cooker ceramic glaze. We are diligent in our efforts to ensure that our products are compliant with applicable regulations regarding the presence of lead. Should you have any other questions or concerns, please contact customer service directly
The language used by crock-pot brand is evasive and they don't actually answer the question. They say they have "favorable" results, they say they don't add lead to the glaze, they say they comply with government regulations (which does allow some lead in consumer products FYI), but they never say their products are lead-free. They also offer no results of their official tests online (that I could find) for consumers to review to decide for themselves if the levels are "safe" or not.
VitaClay answered the same question on their crockpots on amazon:
Is this product guaranteed lead free?
Hello, This is VitaClay, the manufacturer. Our clay is tested frequently and is guaranteed lead-free. You can view a copy of a recent testing report on our website. Thank you for asking!
I did just that and went to their official website in search of the test results. They were very easy to find on the website and their official tests showing their products to be lead, cadmium and arsenic free:
https://cdn.shopify.com/s/files/1/1...1401_1488311980000_6.pdf?12618813348408421565
IF I only planned to use this a couple times a year like I do my big crockpot, I would just get the cheaper one and not worry about it. However, I do plan to use the small one frequently and I feel that means I should have higher standards for the safety on frequently used items that come into contact with food (especially hot food) for extended periods of time. Still, $40 for a teeny tiny crockpot. Dang.
---------------------------------------------------------------------------------
Oh, one last thing to note, in my research I did find that Hamilton Beach crockpots consistently tested negative for lead in consumer home tests as well as the manufacturer stating clearly in the FAQ's on their website that their slow cookers do not contain any detectable amounts of lead. Unfortunately they do not offer as small of a unit as I need but for those reading this thread in the future, Hamilton Beach may be the way to go for large crockpots. I can also attest to the longevity as it is the brand of my grandmothers crockpot

Heres what Hamilton Beach brand says about lead in their slow cookers:
Hamilton Beach specifications applicable to all slow cookers and their components (including the earthenware crocks) prohibits the product from containing any measurable amounts of lead. Furthermore, the factories that manufacture the earthenware crocks for Hamilton Beach are certified ceramic production facilities whose ceramic ware is deemed to satisfy FDA heavy metal requirements. Hamilton Beach takes all reasonable steps to ensure that the earthenware crocks accompanying our slow cookers provide safe and satisfactory service to our consumers.