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Lenovo IdeaPad Slim 3i 15 vs Lenovo IdeaPad Slim 3i 15.6" Laptop

The IdeaPad Slim 3i 15" with Core Ultra 5 is the stronger machine: double the RAM, double the storage, a sharper 16:10 WUXGA screen, longer battery life and a touchscreen. The 15.6" Core i3 N305 model is a basic everyday laptop with a bigger, more established owner base and a matte 16:9 display. Buy the Ultra 5 model if you multitask, keep many tabs open, or want the laptop to stay useful for years. Buy the N305 model only if your work is light browsing, email and documents and you want the simplest, lightest option.

  • Choose the IdeaPad Slim 3i 15" Core Ultra 5 if you want a fast, future-proof laptop for multitasking, longer battery life and a sharper touchscreen.
  • Choose the IdeaPad Slim 3i 15.6" Core i3 N305 if your needs are basic browsing, email and documents and you want a simple, light everyday laptop.

Prices

  • Lenovo IdeaPad Slim 3i 15: $644.00 at eBay (checked today)
  • Lenovo IdeaPad Slim 3i 15.6" Laptop: $384.00 at Amazon (last seen Nov 12)
  • Difference: the Lenovo IdeaPad Slim 3i 15.6" Laptop is $260.00 cheaper than the Lenovo IdeaPad Slim 3i 15 at the latest prices (Nov 12 and Nov 14)
Lenovo
Lenovo IdeaPad Slim 3i 15" Laptop

Lenovo IdeaPad Slim 3i 15

Lenovo IdeaPad Slim 3i 15" Laptop

4.7(53 ratings)
$644.00at eBayChecked 3 h ago
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Pros
  • Core Ultra 5 with 16 GB RAM handles many tabs and apps at once
  • 512 GB SSD leaves room for files and programs
  • 16:10 WUXGA touchscreen is sharper and taller than a standard 16:9 panel
  • About 11 hours of battery plus Rapid Charge
  • RAM can be expanded up to 40 GB
Cons
  • Heavier at 3.58 lb
  • PC-ABS plastic body feels less premium
  • Fewer owner ratings to draw on
  • No memory card reader listed
Lenovo
Lenovo IdeaPad Slim 3i 15.6" Laptop

Lenovo IdeaPad Slim 3i 15.6" Laptop

4.3(2,451 ratings)
$384.00at AmazonChecked Nov 12
See all prices and details
Visit Amazon

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Pros
  • Light at about 3.4 lb and 17.9 mm thin
  • Matte screen cuts glare
  • Memory card reader and Wi-Fi 6
  • Large owner base with 2,451 ratings
  • Numpad included
Cons
  • 8 GB soldered RAM cannot be upgraded
  • 256 GB SSD fills up quickly
  • Core i3 N305 is slow for heavy multitasking
  • 250-nit screen is dim, and 720p webcam is basic
  • No fingerprint reader or facial recognition

What separates them

Lenovo IdeaPad Slim 3i 15Lenovo IdeaPad Slim 3i 15.6" Laptop
ProcessorIntel Core Ultra 5, 6 cores at 2.4 GHz, with an NPU for Copilot+ featuresIntel Core i3 N305, 8 cores and 8 threads, entry-level
Memory16 GB RAM, expandable to 40 GB8 GB LPDDR5, soldered and not upgradeable
Storage512 GB SSD256 GB SSD
Display15.3 in IPS, 1920 x 1200, 16:10, touchscreen15.6 in matte, 1920 x 1080, 16:9, 250 nits, no touch
BatteryAbout 11 hours, with Rapid Charge47 Wh battery, no fast-charge claim
Portability3.58 lb, PC-ABS bodyAbout 3.4 lb, 17.9 mm thin, blue finish
ConnectionsUSB-A, HDMI, headphone jackUSB-A, HDMI, headphone jack, memory card reader, Wi-Fi 6, Bluetooth 5.2
Owner feedback4.7 out of 5 from 53 ratings4.3 out of 5 from 2,451 ratings

Price history

$644.00$384.00
Nov 7Nov 14
  • Lenovo IdeaPad Slim 3i 15: lowest $644.00 on Nov 14 at eBay.
  • Lenovo IdeaPad Slim 3i 15.6" Laptop: lowest $384.00 on Nov 13 at Amazon; $439.00 on Nov 14.

Prices at every store

Lenovo IdeaPad Slim 3i 15

  • eBayNew

    In stock

    $644.00Free shippingChecked 3 h ago
    Visit eBay
  • WalmartNew

    In stock

    $699.00Checked 58 min ago
    Visit Walmart
  • WalmartNew

    In stock

    $699.00Checked 58 min ago
    Visit Walmart

Store links may earn us a commission.

All 2 stores and price history →

Lenovo IdeaPad Slim 3i 15.6" Laptop

  • WalmartNew

    In stockSold by NextPhase ElectronicsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $439.00Checked 58 min ago
    Visit Walmart
  • WalmartNew

    In stock

    $439.00Checked 58 min ago
    Visit Walmart
  • Best BuyNew

    In stock

    $459.99Free shippingChecked Nov 9
    Visit Best Buy
  • AmazonNew

    Availability unknown

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

    $384.00Free shippingChecked Nov 12
    Visit Amazon

Store links may earn us a commission.

All 14 stores and price history →

Specs compared

SpecLenovo IdeaPad Slim 3i 15Lenovo IdeaPad Slim 3i 15.6" Laptop
colorGrayBlue
BrandLenovoLenovo
Proc. brandIntelIntel
ProcessorIntel Core Ultra 5Intel Core i3 N305
OSWindows 11 HomeWindows 11 Home
RAM memory16 GB8 GB
Screen size15.3 in15.6
HD capacity512 GB256 GB
Graphic cardIntel GraphicsIntel UHD Graphics
Battery life11 h8 h
Laptop typePC LaptopsPC Laptops, Ultrabooks
ResolutionWUXGA (1920 x 1200)1920 x 1080 pixels
Show all 40 specsShow fewer specs
SpecLenovo IdeaPad Slim 3i 15Lenovo IdeaPad Slim 3i 15.6" Laptop
DisplayIPS LCDIPS LCD
Core count68
Proc. speed2.4 GHz1.8 GHz
Color categoryGrayBlue
Weight3.58 lb1.55 kg
Refresh rate5600 Hz60 Hz
Max RAM40 GB8 GB
MaterialPC-ABSPC ABS
ManufacturerLENOVOLENOVO
Model nameIdeaPad Slim 3i

What reviewers say

Lenovo IdeaPad Slim 3i 15

  • 4.7 / 553 ratings

Owners rate it 4.7 out of 5 across 53 ratings, praising the screen, everyday speed and battery. Criticism centers on the plastic build and modest graphics.

What people mention
  • DisplayPraisedOwners like the tall 16:10 WUXGA panel for documents and say text looks sharp.
  • PerformancePraisedThe Core Ultra 5 with 16 GB RAM is described as quick for browsing, Office and video calls.
  • BatteryPraisedReviewers report it lasting most of a workday and charging quickly with Rapid Charge.
  • BuildCriticisedThe PC-ABS plastic body draws comments that it feels less solid than metal laptops.

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.
  • BuildPraised

Questions and answers

Which is better for students?
The Core Ultra 5 model. Its 16 GB RAM and 512 GB SSD handle lecture notes, group projects and many browser tabs without slowdown, and the touchscreen helps with notes. The N305 model works for writing and browsing but strains under heavier loads.
Which lasts longer over the years?
The Core Ultra 5 model. More RAM, more storage and an upgradeable memory slot keep it usable longer. The N305 model's 8 GB soldered RAM and 256 GB drive are fixed from day one.
Is the Core Ultra 5 worth stepping up to?
Yes, for most people. You get double the RAM and storage, a sharper 16:10 touchscreen and longer battery life. Step down only if your use is light and you want the lightest, simplest machine.
Which is better for travel?
The N305 model is slightly lighter and thinner, and its matte screen handles glare better. The Ultra 5 model offsets its extra weight with longer battery life and fast charging.
Can I upgrade the RAM or storage?
On the Core Ultra 5 model, RAM can go up to 40 GB and the SSD can be replaced. On the N305 model, memory is soldered and cannot be upgraded; only the SSD is replaceable.
Which has the better screen?
The Core Ultra 5 model. Its 1920 x 1200 16:10 IPS touchscreen is sharper and taller. The N305 model's 1920 x 1080 matte panel is fine for documents but dimmer at 250 nits.

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Buying guides that pick them

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IdeaPad Slim 3i 15"
Operating SystemWindows OSWindows
Processor BrandIntel CPUIntel
HD typeSolid State—
Rec. useHome Office—
Graphics ProcessorIntel GPU—
TouchscreenYes—
Drive TypeSolid State Drive—
Drive Capacity512 GB drive—
Installed Memory16 GB RAM—
Processor Speed2.4 GHz CPU—
Cores—Octa Core, 8 Threads
RAM—8 GB LPDDR5
Storage—256 GB SSD
Display size—15.6 inches
Display brightness—250 nits
Dimensions—359.3 x 235 x 17.9 mm
Battery—47 Wh
Wireless—Wi-Fi 6, 802.11ax 2x2
Buyers like the slim, light chassis and the sturdy feel for a budget laptop.