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Deal.ai › Compare

Acer Aspire 3 15.6-inch Laptop vs Lenovo IdeaPad Slim 3 15" Gen 9

The Lenovo IdeaPad Slim 3 Gen 9 is the stronger pick for most people. It has an octa-core CPU, a fingerprint reader, USB-C, and a touchscreen option, while the Acer Aspire 3 is a plainer dual-core machine. The Acer is lighter at about 4 lb and lists longer battery life, so it suits buyers who mainly want a simple, light laptop for browsing and documents. Owners of both lines report basic plastic builds that hold up for light use; the Lenovo's newer platform and extra ports make it the better long-term buy.

  • Choose the Acer Aspire 3 if you want the lightest, simplest 15.6-inch laptop for web, email and schoolwork and don't need a fingerprint reader or USB-C.
  • Choose the Lenovo IdeaPad Slim 3 if you want more processing headroom, a fingerprint reader, USB-C and the option of a touchscreen.

Prices

  • Acer Aspire 3 15.6-inch Laptop: $279.00 at KenDoTronics (last seen Nov 5)
  • Lenovo IdeaPad Slim 3 15" Gen 9: $272.47 at Amazon (last seen Nov 5)
  • Difference: the Lenovo IdeaPad Slim 3 15" Gen 9 is $6.53 cheaper than the Acer Aspire 3 15.6-inch Laptop at the latest prices (Nov 5)
Acer
Acer Aspire 3 (15.6-inch)

Acer Aspire 3 15.6-inch Laptop

Acer Aspire 3 (15.6-inch)

$279.00at KenDoTronicsChecked Nov 5
See all prices and details
Visit KenDoTronics
Pros
  • Light at about 4 lb
  • Longer rated battery life
  • Ethernet port for wired networks
  • Storage choice up to 512 GB
Cons
  • Dual-core CPU limits heavy multitasking
  • 4 GB base RAM is tight for Windows 11
  • No USB-C or fingerprint reader
  • Older 11th Gen platform
Lenovo
Lenovo IdeaPad Slim 3 (15-inch, Gen 9)

Lenovo IdeaPad Slim 3 15" Gen 9

Lenovo IdeaPad Slim 3 (15-inch, Gen 9)

$272.47at AmazonChecked Nov 5
See all prices and details
Visit Amazon

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

Pros
  • Octa-core CPU handles more at once
  • RAM expandable to 16 GB
  • Fingerprint reader and USB-C
  • Touchscreen option and Energy Star rating
Cons
  • Heavier than the Acer
  • Shorter rated battery life
  • Only one storage size listed
  • Plastic chassis, as with most budget 15-inch laptops

What separates them

Acer Aspire 3 15.6-inch LaptopLenovo IdeaPad Slim 3 15" Gen 9
Processor11th Gen Intel Core i3-1115G4, dual core, around 3 GHzIntel CPU, octa core, around 1.8 GHz base
Memory4 GB or 8 GB, not listed as upgradeable8 GB installed, expandable to 16 GB
Display15.6-inch Full HD, matte, no touch15.6-inch Full HD, matte, touchscreen option, 60 Hz
PortsHDMI and Ethernet, no USB-C listedUSB-A, USB-C, HDMI and 3.5 mm jack
SecurityPassword sign-in onlyFingerprint reader
WeightAbout 4 lbNot listed, typical for this class is heavier
BatteryRated up to 9 hoursRated up to 8 hours
Storage128 GB, 256 GB or 512 GB SSD256 GB SSD

Price history

$579.99$182.00
Nov 5Nov 11
  • Acer Aspire 3 15.6-inch Laptop: lowest $182.00 on Nov 11 at Walmart.
  • Lenovo IdeaPad Slim 3 15" Gen 9: lowest $272.47 on Nov 5 at Amazon; $579.99 on Nov 11.

Prices at every store

Acer Aspire 3 15.6-inch Laptop

  • ravirajtech.co.inNew

    In stockShips from India · duties may apply · made for another market

    $487.43Checked 37 min ago
    Visit ravirajtech.co.in
  • KenDoTronicsNew

    Availability unknown

    $279.00Checked Nov 5
    Visit KenDoTronics
  • KenDoTronicsNew

    Availability unknown

    $279.00+ $20.00 shippingChecked 37 min ago
    Visit KenDoTronics
  • AmazonNew

    Availability unknown

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

    $370.00Free shippingChecked 37 min ago
    Visit Amazon
All 8 stores and price history →

Lenovo IdeaPad Slim 3 15" Gen 9

  • Best BuyNew

    In stock

    $579.99Free shippingChecked 37 min ago
    Visit Best Buy
  • Newegg.comNew

    In stockSold by DealKing

    $732.15Free shippingChecked 37 min ago
    Visit Newegg.com
  • AmazonNew

    Availability unknown

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

    $272.47Checked Nov 5
    Visit Amazon
  • AmazonNew

    Availability unknown

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

    $739.49Free shippingChecked 37 min ago
    Visit Amazon

Specs compared

SpecAcer Aspire 3 15.6-inch LaptopLenovo IdeaPad Slim 3 15" Gen 9
Resolution1920 x 10801920 x 1080
Operating SystemWindows OSWindows OS
Processor BrandIntel CPUIntel CPU
Drive TypeSolid State DriveSolid State Drive
Number Of CoresDual CoreOcta Core
ColorSilver, BlueGray
LanguageEnglish / North AmericaEnglish / North America
With No-Glare ScreenYesYes
Available PortsHDMI, EthernetUSB-A, USB-C, HDMI, 3.5 mm Jack
Drive Capacity128 GB drive, 256 GB drive, 512 GB drive256 GB drive
Screen Size15.6 inches15.6 inches
Installed Memory4 GB RAM, 8 GB RAM8 GB RAM
Show all 21 specsShow fewer specs
SpecAcer Aspire 3 15.6-inch LaptopLenovo IdeaPad Slim 3 15" Gen 9
Processor Speed1.3 GHz CPU1.8 GHz CPU
Battery Life9 hours battery life8 hours battery life
Weight4 lb—
Touchscreen—Yes
Refresh Rate—60Hz
Graphics Processor—AMD GPU
Biometric Security—Fingerprint Scan
Energy Star—Yes
Max Supported RAM—16 GB Supported

What reviewers say

Acer Aspire 3 15.6-inch Laptop

Owners treat the Aspire 3 as a solid budget machine for browsing, documents and streaming. Most praise the price and the easy setup, while complaints center on slow performance in low-RAM models and a dull screen.

What people mention
  • PerformanceMixedFine for browsing and documents, but 4GB models slow down with many tabs open.
  • DisplayCriticisedThe matte finish cuts glare, but brightness and color are modest.
  • BuildCriticisedOwners describe a plastic chassis with some flex in the lid and keyboard deck.
  • ValuePraisedBuyers say it delivers a full-size Full HD laptop for very little money.

Lenovo IdeaPad Slim 3 15" Gen 9

Owner feedback on the IdeaPad Slim 3 line is generally positive for the price, with people calling it a solid everyday machine. Complaints center on the dim display, average speakers and the amount of preinstalled software.

What people mention
  • ValuePraisedOwners say it delivers the essentials for less than most 15-inch rivals.
  • DisplayMixedThe 1080p panel is sharp, but reviewers find it dim and low on color punch.
  • KeyboardPraisedTyping feel and the number pad get consistent praise.
  • SpeakersCriticisedSound is described as thin and quiet, fine for calls but not media.

Questions and answers

Which is better for school and office work?
The Lenovo. Its octa-core CPU and 8 GB of expandable RAM keep up with many browser tabs and Office apps better than the Acer's dual-core chip.
Which lasts longer?
The Acer lists up to 9 hours against the Lenovo's 8, so it edges ahead on battery. Build quality is similar on both: plastic bodies meant for light use.
Is the Lenovo worth stepping up to?
Yes for most buyers. You get a faster CPU, a fingerprint reader, USB-C and room to add RAM, which extends the laptop's useful life.
Do I need the touchscreen?
Only if you like tapping through menus or sketching. The Lenovo offers it; the Acer does not. It adds weight and drains battery faster.
Can I upgrade the memory?
The Lenovo supports up to 16 GB. The Acer's listings do not state a maximum, so buy it with 8 GB if you choose the Acer.
Which is easier to carry?
The Acer at about 4 lb. The Lenovo is heavier, though both are standard 15.6-inch laptops that suit a desk more than a daily commute.

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More comparisons

  • Apple MacBook Air 13-inch (M4, 2025) vs Acer Aspire 3 (15.6-inch)
  • Apple MacBook Air 13-inch (M4, 2025) vs Lenovo IdeaPad Slim 3 (15-inch, Gen 9)
All 10 stores and price history →