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Lenovo IdeaPad Slim 3i 15.6" Laptop vs Acer Swift Air 14

Buy the Acer Swift Air 14 if you want a lighter, longer-lasting machine with a sharper 120 Hz screen and twice the storage. Buy the Lenovo IdeaPad Slim 3i if you want a bigger 15.6-inch display with a number pad and a lower price. The Lenovo is $429.00 at Walmart as of November 7, 2026; no price was given for the Acer, so compare its current store prices on Deal.ai before deciding.

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Lenovo
Lenovo IdeaPad Slim 3i 15.6" Laptop

Lenovo IdeaPad Slim 3i 15.6" Laptop

4.3(2,451 ratings)
$429.00at WalmartVerified
See all prices and details
Visit Walmart

Choose the IdeaPad Slim 3i if you want a 15.6-inch screen with a numpad and the lowest price.

Pros
  • Lowest price of the pair: $429.00 at Walmart as of November 7, 2026.
  • Large 15.6-inch matte 1080p screen.
  • Full number pad for spreadsheets and data entry.
  • Wi-Fi 6 and a memory card reader.
Cons
  • 8 GB RAM and 256 GB storage limit multitasking and file space.
  • 250 nits is dim for bright rooms or outdoor use.
  • 1.55 kg is heavier than the Acer.
  • No fingerprint reader or facial recognition.
Acer
Acer Swift Air 14

Acer Swift Air 14

See all prices and details

Choose the Swift Air 14 if you want a lighter laptop with a sharper 120 Hz display and longer battery life.

Pros
  • 1.19 kg and 12.9 mm thin, easy to carry all day.
  • 1920x1200 120 Hz IPS screen is sharper and smoother.
  • 70 Wh battery rated 19 hours of video playback.
  • 512 GB SSD and facial recognition login.
Cons
  • 8 GB RAM is soldered LPDDR5X and cannot be upgraded.
  • No price was given, so it may cost more than the Lenovo.
  • No number pad.
  • Screen brightness is not stated.

What separates them

Lenovo IdeaPad Slim 3i 15.6" LaptopAcer Swift Air 14
Screen size and shape15.6-inch 16:9, 1920x108014-inch 16:10, 1920x1200
Refresh rate60 Hz (standard)120 Hz
Brightness250 nitsNot stated
Weight1.55 kg1.19 kg
Thickness17.9 mm12.9 mm
Battery47 Wh70 Wh, rated 19 hours video playback
Storage256 GB SSD512 GB SSD
Security and keyboardNo fingerprint or face unlock; has numpadFacial recognition; backlit keyboard, no numpad

Price history

  • Lenovo IdeaPad Slim 3i 15.6" Laptop: lowest $459.99 on Nov 7 at Best Buy.
  • Acer Swift Air 14: lowest $579.99 on Nov 5 at Best Buy.

Prices at every store

Lenovo IdeaPad Slim 3i 15.6" Laptop

  • WalmartNew

    In stockSold by GAMES FOR LESSReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $429.00Verified
    Visit Walmart
  • Best BuyNew

    In stock

    $459.99Free shippingObserved at 2:02 PM
    Visit Best Buy

Store links may earn us a commission. Some prices via Klarna.

All 2 stores and price history →

Acer Swift Air 14

  • Best BuyCheck price at Best Buy
  • eBayCheck price at eBay
  • Acer StoreCheck price at Acer Store

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Prices and history →

Specs compared

SpecLenovo IdeaPad Slim 3i 15.6" LaptopAcer Swift Air 14
colorBlueGold
ProcessorIntel Core i3 N305Intel® Core™ 5 Series 3 320 processor Hexa-core…
Resolution1920 x 1080 pixels1920 x 1200
Weight1.55 kg1.19 kg
Screen Resolution1920x1080 (Full HD)WUXGA (1920 x 1200) 16:10 IPS 120 Hz
Screen Size (")15.614"
Operating SystemWindowsWindows 11 Home 64-bit
CoresOcta Core, 8 Threads—
RAM8 GB LPDDR5—
Storage256 GB SSD—
Display size15.6 inches—
Display brightness250 nits—
Show all 40 specsShow fewer specs
SpecLenovo IdeaPad Slim 3i 15.6" LaptopAcer Swift Air 14
Dimensions359.3 x 235 x 17.9 mm—
Battery47 Wh—
WirelessWi-Fi 6, 802.11ax 2x2—
Bluetoothv5.2—
ConnectionsUSB-A, 1/8" Headphone Jack, HDMI—
Optical DriveNone—
Windows VersionWindows 11 Home—
SSD Size256 GB—
Hard Drive TypeSSD—
WebcamYes

What reviewers say

Lenovo IdeaPad Slim 3i 15.6" Laptop

  • 4.3 / 52,451 ratings

With 4.3 out of 5 from 2,451 ratings, owners generally see the IdeaPad Slim 3i as solid value for light everyday work. Praise centers on the keyboard, number pad and low price; complaints focus on the dim display, modest battery life and limited storage.

What people mention
  • DisplayCriticisedOwners say the 250-nit panel is dim and hard to read in bright rooms.
  • BatteryMixedRuntime is fine for a few hours of light work but falls short of all-day claims.
  • PerformancePraisedThe eight-core N305 feels responsive for browsing, Office and streaming.
  • BuildPraisedBuyers like the slim, light chassis and the sturdy feel for a budget laptop.

Acer Swift Air 14

Reception for the Swift Air 14 line is generally positive, with owners treating it as a light, long-lasting machine for everyday work rather than a performance laptop. The 120 Hz screen and low weight draw the most praise, while the fixed 8 GB of memory is the usual complaint.

Pros
  • Low weight and slim build for daily carrying
  • Smooth 120 Hz display
  • Long battery life in light use
  • Good value at entry-level prices
Cons
  • 8 GB RAM limits heavy multitasking
  • Modest processor performance under sustained load
  • Limited port selection on such a thin chassis

Questions and answers

Which is better for students?
The Acer Swift Air 14 suits students who carry a laptop all day: it is 0.36 kg lighter and its 70 Wh battery is rated for 19 hours of video playback. The Lenovo suits students who want a bigger screen and a lower price.
Which has the better screen?
The Acer. Its 14-inch 1920x1200 IPS panel runs at 120 Hz, which looks smoother when scrolling. The Lenovo is larger at 15.6 inches but 1080p at 250 nits.
Is the Acer worth the extra money?
If its price is close to the Lenovo's $429.00 at Walmart as of November 7, 2026, yes: you get double the storage, a 120 Hz screen, a bigger battery and less weight. Check the current Acer price on Deal.ai first.
Which lasts longer on a charge?
The Acer. Its 70 Wh battery is rated for 19 hours of video playback. The Lenovo has a 47 Wh battery and no stated runtime.
Can I upgrade the RAM or storage?
The Acer's 8 GB LPDDR5X memory is soldered, so only its SSD can be swapped. The Lenovo's 8 GB is also fixed; its 256 GB SSD can be replaced.
Which is better for spreadsheets?
The Lenovo, because of its full number pad and larger 15.6-inch screen. The Acer's taller 16:10 screen shows more rows but has no numpad.

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—
Screen SurfaceMatte—
Webcam Resolution720p (HD Ready)—
Memory Card ReaderYes—
Memory TypeDDR4—
Aspect Ratio16:9—
Fingerprint ReaderNo—
NumpadYes—
SeriesLenovo IdeaPad Slim—
Facial RecognitionNo—
Mobile NetworksNo—
Processor ModelN305—
WiDiNo—
Standard Memory—8 GB, LPDDR5X
SSD Capacity—512 GB SSD
Battery Life—19 hours under a video playback scenario
Battery Capacity—70Wh
Thickness—12.9 mm
Refresh Rate—120 Hz