Which is better for pour-over coffee?

The INSMART. Its gooseneck spout gives a slow, steady stream and its 7 presets let you set water near 200°F instead of a rolling boil. The Mainstays has no temperature control and a wide spout.

Which boils water faster?

The Mainstays, on paper. Its 1500 W element outpowers the INSMART's 1000 W, and it holds 1.7 L. The INSMART claims a boil in under 5 minutes for its smaller 1 L.

Is the INSMART worth the extra $12?

Yes if you brew coffee or green tea and want temperature control and a gooseneck spout. No if you just boil water for tea bags, cooking or several cups at once.

Which holds more water?

The Mainstays at 1.7 L versus 1 L for the INSMART. The Mainstays suits filling a teapot or several mugs; the INSMART suits one or two cups.

Do both shut off automatically?

Yes. Both have automatic shut-off and boil-dry protection. The Mainstays adds a safety-locking lid; the INSMART adds a 3-minute memory function.

Which is built from safer materials?

The INSMART uses food-grade 304 stainless steel for the pot, spout, filter and inner lid. The Mainstays is high-temperature resistant plastic. Note the INSMART listing states no NRTL certification.

Mainstays 1.7L Electric Kettle vs INSMART Gooseneck Electric Kettle

Buy the Mainstays if you mainly boil water for tea, instant coffee or cooking and want the lowest price. Buy the INSMART if you pour over coffee or brew green tea and need temperature control. The Mainstays is $17.81 at eBay as of November 6, 2026; the INSMART is $29.99 at Walmart as of the same date. The INSMART costs about $12 more and gives up 0.7 L of capacity for precision.

Today the Mainstays 1.7L Electric Kettle costs $12.18 less at its best price.

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