
SUNWILL Travel Coffee Tumbler 20 oz
Stated spill proof sliding lid with a silicone gasket seal and a straw friendly drinking hole.
- 20 Ounces
- 0.72 lb
The deciding specification is the published height, because that figure sits closest to what a cup holder and a bag pocket will accept.
By the Lush Editorial Team·Researched & Compared
Five tumblers compared using manufacturer published dimensions, weights, capacity and stated features from the fact sheet.

Stated spill proof sliding lid with a silicone gasket seal and a straw friendly drinking hole.

0.4 pounds, the lightest pick, with a stated MagSlider lid that the maker notes is not leakproof.

Ships with a stated flip lid and a straw lid, two stainless steel straws and a straw brush.

40 ounces, the largest capacity here, with a stated one handle design and a leak proof lid.

Stated polished finish and the same 6.75 inch height and 0.72 pound weight as its sibling.
| Model | Brand | Size (Capacity) | Weight | Best For |
|---|---|---|---|---|
| SUNWILL Travel Coffee Tumbler 20 oz | SUNWILL | 20 Ounces | 0.72 lb | Best spill proof sliding lid |
| YETI Rambler 20 oz Tumbler | YETI | 20 Ounces | 0.4 lb | Lightest of the five |
| FristChoice 30 oz Tumbler with Lids and Straws Doubl... | FristChoice | 30 Ounces | 1.15 lb | Best two lid set |
| 40 oz Tumbler with Handle | WATERSY | 40 Ounces | 1.41 lb | Largest capacity of the five |
| SUNWILL Coffee Tumbler | SUNWILL | 20 Ounces | 0.72 lb | Best polished finish |

Stated spill proof sliding lid with a silicone gasket seal and a straw friendly drinking hole.

0.4 pounds, the lightest pick, with a stated MagSlider lid that the maker notes is not leakproof.

Ships with a stated flip lid and a straw lid, two stainless steel straws and a straw brush.

40 ounces, the largest capacity here, with a stated one handle design and a leak proof lid.

Stated polished finish and the same 6.75 inch height and 0.72 pound weight as its sibling.
For daily commuting, the published height and the stated lid design decide the pick. The two SUNWILL 20 ounce tumblers are 6.75 inches tall and 0.72 pounds, with a maker stated spill proof sliding lid. The YETI Rambler 20 ounce is 0.4 pounds, the lightest of the five, and 7.0 inches tall. The FristChoice 30 ounce is 7.6 inches tall and 1.15 pounds with two stated leak proof lids. The WATERSY 40 ounce is 10.0 inches tall and 1.41 pounds, the heaviest and largest capacity here.
“Height and lid design decide the commute, not capacity alone.”
Lush Food & Drink
The YETI Rambler 20 ounce is published at 0.4 pounds, the lightest of the five picks. The two SUNWILL 20 ounce tumblers are published at 0.72 pounds, the FristChoice 30 ounce at 1.15 pounds and the WATERSY 40 ounce at 1.41 pounds, the heaviest here.
The WATERSY 40 ounce has the largest published capacity of the five at 40 ounces. The FristChoice and Cool Yoleb models are published at 30 ounces, and the two SUNWILL tumblers and the YETI Rambler are published at 20 ounces.
The FristChoice 30 ounce is stated to include two leak proof lids, one sliding and one flip. The WATERSY 40 ounce is stated to have a leak proof lid. The YETI MagSlider lid is stated by the maker as not leakproof and not able to prevent spills.
Published heights are 6.75 inches for the two SUNWILL 20 ounce tumblers, 7.0 inches for the YETI Rambler 20 ounce, 7.6 inches for the FristChoice 30 ounce and 10.0 inches for the WATERSY 40 ounce. Cool Yoleb publishes no height.
SUNWILL states its 20 ounce tumblers are car cup holder friendly, FristChoice states its 30 ounce fits most car cup holders, WATERSY states its 40 ounce can be placed in a car cup holder and YETI states its 20 ounce tumblers fit standard sized cup holders. No maker publishes a holder diameter.
SUNWILL states hot over 6 hours and cold around 24 hours. FristChoice states cold up to 24 hours and hot at least 6 hours. WATERSY states cold for 34 hours. Cool Yoleb states cold 12 hours and warm 6 hours. YETI publishes no hourly figure.
Specifications come from the manufacturers' own published listings. Lush Food & Drink may earn a commission if you buy through a link on this page, at no extra cost to you. How we research.
The five picks split into three published capacities: 20 ounces for the two SUNWILL tumblers and the YETI Rambler, 30 ounces for the FristChoice, and 40 ounces for the WATERSY. Published heights follow the same order, from 6.75 inches for the SUNWILL pair to 10.0 inches for the WATERSY. Published weights run from 0.4 pounds for the YETI to 1.41 pounds for the WATERSY.
Lid claims differ more than the measurements do. SUNWILL states a spill proof sliding lid with a silicone gasket seal. YETI states a MagSlider lid and notes it is not leakproof. FristChoice states two leak proof lids, and WATERSY states a leak proof lid. Those statements, not the numbers, decide how a tumbler behaves in a bag.
| Specification | SUNWILL B07MV6Z896 | YETI B073WK182F | FristChoice B0CCY9ZFD8 | WATERSY B0D76368QD | SUNWILL B07MV6JSJZ |
|---|---|---|---|---|---|
| Published capacity | 20 ounces | 20 ounces | 30 ounces | 40 ounces | 20 ounces |
| Published height | 6.75 inches | 7.0 inches | 7.6 inches | 10.0 inches | 6.75 inches |
| Published width | 3.37 inches | 3.5 inches | 3.9 inches | 4.0 inches | 3.37 inches |
| Published weight | 0.72 pounds | 0.4 pounds | 1.15 pounds | 1.41 pounds | 0.72 pounds |
| Stated lid | Spill proof sliding lid | MagSlider, stated not leakproof | Two leak proof lids | Leak proof lid | Spill proof sliding lid |
| Stated hot retention | Over 6 hours | not published | At least 6 hours | not published | Over 6 hours |
| Stated cold retention | Around 24 hours | not published | Up to 24 hours | 34 hours | Around 24 hours |
| Stated cup holder fit | Car cup holder friendly | Standard sized cup holders | Most car cup holders | Car cup holder | Car cup holder friendly |
| Stated material | 18/8 304 stainless steel | Stainless steel | 18/8 304 stainless steel | 304 stainless steel | 18/8 304 stainless steel |
The table does not tell you how any lid behaves after a week of use, because no maker publishes a seal test result. It also does not tell you whether a stated cup holder fit holds for a deep or a shallow holder, since no holder diameter is published. The figures describe what each maker states, not what a commuter will experience.
SUNWILL states its sliding lid is spill proof and describes a silicone gasket seal with a drinking hole on top. That wording covers a knock or a tilt, not a bag carried upside down. The maker does not use the word leakproof for either SUNWILL tumbler, so the published claim stops at spill proof.
FristChoice and WATERSY both state leak proof lids. FristChoice states two lids in the box, one sliding and one flip, plus two stainless steel straws and a straw brush. WATERSY states a well sealed lid with drinking holes for straws or direct sipping. Those are the two picks whose makers use the stronger word.
YETI states that the MagSlider lid adds a barrier that keeps drinks contained and slows heat transfer, then states plainly that the lid is not leakproof and will not prevent spills. A commuter who packs a tumbler upright in a cup holder can act on that. A commuter who drops it in a bag sideways should read the statement as a warning.
The MagSlider lid uses magnets, which the maker states is the only drink lid of its kind in the range. That is a lid design claim, not a performance claim. Nothing in the published features says the magnet lid holds a seal better than a gasket lid, so the comparison rests on the leakproof wording alone.
The two SUNWILL tumblers are published at 6.75 inches tall, the YETI Rambler at 7.0 inches, the FristChoice at 7.6 inches and the WATERSY at 10.0 inches. Each maker states some form of cup holder fit, from car cup holder friendly to standard sized cup holders. No maker publishes the diameter of the holder it fits.
A 10.0 inch tumbler sits higher in a holder than a 6.75 inch one, and the WATERSY also carries a stated one handle design. The published figures do not say whether that height clears a dashboard or a center console, so the number is the only guide available.
The YETI Rambler is published at 0.4 pounds, the lightest of the five. The two SUNWILL tumblers are published at 0.72 pounds, the FristChoice at 1.15 pounds and the WATERSY at 1.41 pounds. The spread between the lightest and the heaviest is 1.01 pounds, which is more than the weight of the YETI itself.
Capacity tracks weight here. The 20 ounce picks are the lighter group, the 30 ounce FristChoice sits in the middle and the 40 ounce WATERSY is the heaviest. A commuter who refills once and walks a short distance can weigh that trade against a larger published capacity.
Commuter who carries a bag. The FristChoice 30 ounce states two leak proof lids, one sliding and one flip, and includes two straws and a brush. Its published height is 7.6 inches and its weight is 1.15 pounds.
Commuter who wants the lightest carry. The YETI Rambler 20 ounce is published at 0.4 pounds, the lightest of the five, and 7.0 inches tall. The maker states the MagSlider lid is not leakproof, so keep it upright.
Commuter who wants a spill proof sliding lid. The SUNWILL 20 ounce tumblers are published at 6.75 inches and 0.72 pounds, with a stated spill proof sliding lid and a silicone gasket seal. Both share the same figures.
Commuter who drinks a lot between refills. The WATERSY 40 ounce has the largest published capacity at 40 ounces, a stated leak proof lid and a one handle design. It is published at 10.0 inches tall and 1.41 pounds.
Commuter who wants a polished finish. The second SUNWILL 20 ounce tumbler shares the 6.75 inch height and 0.72 pound weight of its sibling and adds a stated polished finish instead of a powder coated one.
Several figures that would settle a commuting choice are not published by any maker on this sheet.