6 Insulated Tumblers Compared: From 350ml Kids' Cups to 900ml Tumblers

Finding the right insulated tumbler can be surprisingly difficult. Choose one that is too small, and you will be refilling it all day. Choose the wrong lid, and your water tumbler may leak or become frustrating to carry. This article compares six insulated tumblers for capacity, insulation, leak resistance, straw design, and everyday use, so you can find the best tumbler without guessing. Browse the BentoBliss tumbler range to see the options side by side. 

Which Insulated Tumbler Is Best for Your Needs?

These six insulated tumblers cover different needs, from a 350ml kids' tumbler to a 900ml high-capacity option. The main differences are size, insulation, lid design, and how each tumbler is designed to be used. Here is how each insulated tumbler compares, starting with the features that matter most.

1. Avanti HydroQuench Insulated Smoothie Tumbler – 550ml

The Avanti HydroQuench is the best choice if you want two lid options in one tumbler. It comes with a leakproof, airtight sipper lid and a second multifunction lid with a three-position dial and straw. The 550ml stainless steel body uses double-wall Aircore vacuum insulation for hot or cold drinks. 

The broad opening makes it easy to add ice, while the condensation-free exterior and car-cup-holder fit make it practical for everyday use. The Avanti HydroQuench Insulated Smoothie Tumbler is the better pick if you want one insulated tumbler that can handle smoothies, iced drinks, and water. 

2. Avanti YumYum Insulated Tumbler – 350ml

The Avanti YumYum is the best water tumbler here for younger kids. Its 350ml capacity is sized for children, and the leakproof silicone straw lets them drink without tipping the cup. A silicone bumper protects the base from knocks. 

The double-wall stainless steel construction keeps drinks cold for hours without making the tumbler oversized. It is also BPA-, phthalate-, and PVC-free. The Avanti YumYum Insulated Tumbler suits school days, outings, and everyday hydration when a full-size tumbler is too large. 

3. Oasis Insulated Junior Commuter Tumbler – 700ml

The Oasis Junior Commuter is the better choice when a child needs more than 350ml of water. It holds 700ml and uses 18/8 stainless steel with double-wall vacuum insulation. The tumbler keeps beverages cold for up to 12 hours and has a leak-resistant twist lid with a flexible silicone straw. 

The handle makes it easier for children to carry, while the design fits most standard cup holders and works for both right- and left-handed users. The Oasis Insulated Junior Commuter Tumbler is a strong water tumbler choice for school, sport, and outdoor activities. 

4. BentoBliss Premium Stainless Steel Insulated Tumbler – 750ml

The BentoBliss Premium is the best everyday option if you want a larger tumbler with a straw. It holds 750ml and uses 316 stainless steel with double-wall vacuum insulation. Its straw lid has a leak-resistant silicone seal, and the integrated handle is what makes it easier to carry.

The 750ml capacity gives you more room than the kids' options without moving up to the largest tumbler in the comparison. The BentoBliss Stainless Steel Insulated Tumbler works well when you want a larger water tumbler for everyday hydration.

5. Oasis Insulated Voyager Carry Tumbler – 900ml

The Oasis Voyager is the best tumbler for maximum capacity. Its 900ml size gives you more room than the other options in this comparison, so you can carry more water between refills. The carry design makes the larger format easier to take with you. If you prioritise capacity over a compact size, the Oasis Insulated Voyager Carry Tumbler is the option to consider.

6. Made By Fressko Venti Tumbler – 20oz

The Made By Fressko Venti is the best choice if you mainly drink cold beverages through a straw. Its 20oz capacity suits iced coffee, smoothies, and other cold drinks, while the reusable titanium straw is its standout feature. It is a more targeted choice than the larger water tumblers above. If you specifically want tumblers with straws for cold drinks, the Made By Fressko Venti Tumbler fits that use case without the bulk of a larger-capacity model.

How Do These Insulated Tumblers Compare?

Capacity, lid design, and straw options vary across the six insulated tumblers. These differences make some models better suited to kids, while others work better for larger water intake or cold drinks. Here is a side-by-side comparison of the key specifications:

Which Insulated Tumbler Should You Choose?

Choose your insulated tumbler based on capacity, user, and drinking style. The table below shows the best fit for each need.

Conclusion

The Avanti HydroQuench is the most versatile option, while the Avanti YumYum suits younger kids who need a smaller water tumbler. The Oasis Junior Commuter offers more capacity for kids, and the BentoBliss Stainless Steel Tumbler gives adults a 750ml everyday option.

For maximum capacity, choose the Oasis Voyager. If you mainly drink iced coffee, smoothies, or other cold drinks, the Made By Fressko Venti is the better fit. Compare the BentoBliss Stainless Steel Insulated Tumbler and other insulated tumblers to find the right size and design for your routine.

FAQ

How long do insulated tumblers keep drinks cold?

The time varies by model and insulation design. For example, the Oasis Junior Commuter Tumbler keeps drinks cold for up to 12 hours, while other models have different insulation specifications.

Can you put hot drinks in an insulated tumbler?

Some insulated tumblers are suitable for hot drinks, while others are intended mainly for cold beverages. Always check the manufacturer's instructions for the specific model before adding a hot drink.

Are stainless steel tumblers better than plastic tumblers?

Stainless steel tumblers are durable and do not retain flavours as readily as some plastics. Models such as the BentoBliss Stainless Steel Tumbler also use vacuum insulation to help maintain drink temperature.

How do you clean an insulated tumbler?

Disassemble the lid, straw, and removable parts before washing them. Use warm soapy water and a suitable bottle or straw brush to clean areas where residue can collect. Check the product's care instructions before putting any part in the dishwasher.

Can insulated tumblers go in the dishwasher?

Dishwasher suitability varies by model and component. Check the care manual for your specific tumbler before putting it in the dishwasher, particularly the lid, straw, and silicone parts.