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Cosori 1.7L Stainless Steel Electric Kettle vs Mainstays 1.7L Electric Kettle

Buy the Cosori SE152 if you want a plastic-free interior and a sturdier build. Its 304 stainless steel spout, inner lid and filter keep hot water off plastic, and the Strix thermostat and boil-dry cutoff are the same safety parts used across premium kettles. The Mainstays is the lighter, simpler choice: 1.7 L, one-touch operation, a big side window and a locking lid, backed by 4.6 stars from over 4,300 ratings. Owners of the Mainstays praise fast boiling and easy pouring but report an off taste from the all-plastic body and a short lifespan, so the Cosori is the better long-term pick.

  • Choose the Cosori SE152 if you care about a stainless steel interior, a two-stage lid for filling and cleaning, and a kettle you expect to keep for years.
  • Choose the Mainstays 1.7L if you want a simple one-touch kettle with a large external water window and a locking lid, and you don't mind a plastic body.

Prices

  • Cosori 1.7L Stainless Steel Electric Kettle: $25.99 at Amazon (checked today)
  • Mainstays 1.7L Electric Kettle: $14.84 at Walmart (checked today)
  • Difference: the Mainstays 1.7L Electric Kettle is $11.15 cheaper than the Cosori 1.7L Stainless Steel Electric Kettle today
Cosori
Cosori 1.7L Stainless Steel Electric Kettle SE152

Cosori 1.7L Stainless Steel Electric Kettle

Cosori 1.7L Stainless Steel Electric Kettle SE152

$25.99at AmazonChecked 3 h ago
See all prices and details
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Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Plastic-free 304 stainless steel interior, spout and filter
  • Fast 2200 W heating
  • Two-stage lid makes filling and descaling easier
  • Strix thermostat and boil-dry protection
  • Blue LED shows when the boil finishes
Cons
  • Internal water markings are harder to read than an external window
  • No temperature settings, full boil only
  • Heavier than a plastic kettle
Mainstays
Mainstays 1.7L Electric Kettle with Auto Shut-Off

Mainstays 1.7L Electric Kettle

Mainstays 1.7L Electric Kettle with Auto Shut-Off

4.6(4,374 ratings)
$14.84at WalmartChecked 3 h ago
See all prices and details
Visit Walmart
Pros
  • Large external water window is easy to see
  • One-touch operation with a lighted switch
  • Safety-locking lid and boil-dry protection
  • 360° cordless base for easy pouring
  • High owner rating across thousands of reviews
Cons
  • All-plastic body can give water an off taste
  • Some owners report plastic flaking into the water
  • Owners say it may not last more than a year or two
  • Lower wattage means slower boiling

What separates them

Cosori 1.7L Stainless Steel Electric KettleMainstays 1.7L Electric Kettle
Interior material304 stainless steel throughout, including spout, inner lid and filterPlastic body with a concealed heating element
Power2200 W, boils 0.5 L in about 3 minutes1500 W at 120V
Water level gaugeInternal markings you read from aboveExternal semi-transparent window
LidTwo-stage lid opens at 30° and past 70°Push-button pop-up lid with safety lock
Safety cutoffStrix auto shut-off plus boil-dry protectionAuto shut-off plus boil-dry protection, Strix thermostat
Build and lifespanStainless construction, built for long-term usePlastic casing; owners report a year or two of service
TasteNo plastic in contact with the waterOwners report an off taste and occasional flaking
Ease of serving360° swivel base, cordless pour360° swivel base, cordless pour, locking lid

Price history

$24.99$14.62
Nov 6Nov 12
  • Cosori 1.7L Stainless Steel Electric Kettle: lowest $24.99 on Nov 12 at WoodArtSupply.
  • Mainstays 1.7L Electric Kettle: lowest $14.62 on Nov 10 at Mercari; $14.84 on Nov 12.

Prices at every store

Cosori 1.7L Stainless Steel Electric Kettle

  • lenonlures.comNew

    In stock

    $25.99+ $6.50 shippingChecked 3 h ago
    Visit lenonlures.com
  • COSORINew

    In stockReturn policy

    $35.99Checked 1 h ago
    Visit COSORI
  • eBayNew

    In stockSold by gearness

    $43.80Free shippingChecked 3 h ago
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $25.99Checked 3 h ago
    Visit Amazon

Also available at

  • WoodArtSupplyCheck price at WoodArtSupply

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All 11 stores and price history →

Mainstays 1.7L Electric Kettle

  • WalmartNew

    In stock

    $14.84Checked 3 h ago
    Visit Walmart
  • PoshmarkNew

    In stock

    $20.00+ $6.49 shippingChecked Nov 10
    Visit Poshmark
  • Brands For Less USANew

    In stock

    $26.83Free shippingChecked Nov 10
    Visit Brands For Less USA
  • eBayNew

    Availability unknownSold by midnightnostalgic (100% positive, 12 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $24.99+ $7.68 shippingChecked Nov 10
    Visit eBay

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay

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All 5 stores and price history →

Specs compared

SpecCosori 1.7L Stainless Steel Electric KettleMainstays 1.7L Electric Kettle
Capacity1.7L1.7 L
Auto shut-offStrix auto shut-offAutomatic shut off and boil dry protection
Power2200 W120V/60Hz/1500W
Cup Capacity7 cups of water5
Body MaterialGlassPlastic
Beverage Type SupportedWaterHot beverage
Height10 in8.66
Depth6.3 in6.3
WidthExtra-wide opening9.06
Heating TypeElectricElectric
ThermostatBritish Strix thermostatYes (STRIX thermostat control)
Automatic Shut-OffYesYes
Show all 40 specsShow fewer specs
SpecCosori 1.7L Stainless Steel Electric KettleMainstays 1.7L Electric Kettle
ColorBlackWhite
TypeKettleKettle
StyleKettleKettle
SubtypeElectric KettleElectric Kettle
Lid TypeLarge-angle lidManual lid open structure
Included ComponentsStainless-steel lid, Built-in stainless steel m…Removable nylon filter, Detachable base
Overheat ProtectionBoil-dry safety featureYes (boil dry protection)
Indicator LightYes (blue LED glow)Orange indicator light
Interior material304 stainless steel

What reviewers say

Mainstays 1.7L Electric Kettle

  • 4.6 / 54,374 ratings

With 4.6 out of 5 from 4,374 ratings, owners mostly treat this as a cheap kettle that does the job. Praise centers on price, fast boiling for the money and the auto shut-off. Complaints tend to be about plastic taste and build feel.

What people mention
  • ValuePraisedOwners say it costs little and does the basic job of boiling water.
  • Boil speedPraisedReviewers find it fast enough for a full 1.7L fill in normal use.
  • Plastic tasteCriticisedSome buyers report a plastic smell or taste in the first few boils.
  • Build qualityMixedIt feels light and plasticky, though most accept that at this price.

Questions and answers

Which is better for tea and coffee?
The Cosori. Its interior, spout and filter are all 304 stainless steel, so hot water never touches plastic. Mainstays owners report an off taste from the plastic body.
Which lasts longer?
The Cosori. Stainless steel construction and a Strix thermostat are built for years of use. Mainstays owners often say theirs lasted a year or two before the plastic degraded.
Is the Cosori worth stepping up to?
Yes, if you boil water daily. You get a plastic-free interior, faster heating and a two-stage lid. The Mainstays is fine for light, occasional use.
Which is easier to fill and clean?
The Mainstays is easier to check at a glance thanks to its external water window. The Cosori's wide two-stage lid makes cleaning the inside simpler.
Do both shut off automatically?
Yes. Both have auto shut-off and boil-dry protection, and both use a Strix thermostat. Neither will run dry unattended.
Which boils faster?
The Cosori. At 2200 W it brings 0.5 L to a boil in about 3 minutes. The Mainstays runs at 1500 W, so the same amount takes longer.

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More comparisons

  • Cosori 1.7L Stainless Steel Electric Kettle SE152 vs Cuisinart CPK-17P1
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  • Mainstays 1.7L Electric Kettle with Auto Shut-Off vs INSMART Gooseneck Electric Kettle
  • Mainstays 1.7L Electric Kettle with Auto Shut-Off vs TINANA Electric Kettle with Stainless Steel Removable Infuser: 2L Borosilicate Glass Electric Tea Kettle, 1500W Boiling Water Pot, Auto Shut Off, Boil-Dry Protection
  • Cuisinart CPK-17P1 vs Mainstays 1.7L Electric Kettle with Auto Shut-Off
  • SUSTEAS 1.7L Stainless Steel Electric Kettle with Thermometer (KE-1309BT) vs Mainstays 1.7L Electric Kettle with Auto Shut-Off

Buying guides that pick them

  • Best electric kettles with automatic shut-off
—
Boiling timeHeats 2 cups (0.5 L) to boiling within 3 minutes—
Water level markingsInternal water level markings—
Base360° swivel base—
Lid openingtwo-stage lid (30° & > 70°)—
ColourStainless Silver—
Water TemperatureFull boil—
Spout TypeGlass-formed spout—
FinishStainless Steel—
Number Of Pieces1—
Digital DisplayNo—
actual_color—White
Max capacity—1.7 Liter
Water gauge—external semi-transparent water gage
Lid—Safety locking lid
Base rotation—360 degree rotation
Cordless design—Cordless, detach from base for ease of use
Heating element—Concealed heating element
Power (W)—1500
Type of Kettle—Electric Kettle