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Lenovo IdeaPad Slim 3 15.6" N150 vs Lenovo ThinkBook 14 G4

The ThinkBook 14 G4 is the stronger machine: a 10-core 13th Gen Core i7, 16 GB DDR4 and a 256 GB SSD handle real multitasking, and the 14-inch body weighs about 3.15 lb with a rated 8.2 hours of battery. The IdeaPad Slim 3 15ITN9 runs Intel's low-end N150 with 8 GB RAM and 128 GB of eMMC-class storage, so it suits light browsing, email and schoolwork on a bigger 15.6-inch screen with a numpad. Owners rate the IdeaPad slightly higher (4.6 vs 4.3), but the ThinkBook's business security (TPM 2.0, privacy shutter, Kensington lock) and faster CPU make it the better long-term buy for work.

  • Choose the IdeaPad Slim 3 if you want a larger 15.6-inch screen with a number pad for basic everyday tasks and don't need heavy multitasking.
  • Choose the ThinkBook 14 G4 if you need real processing power, more memory and storage, and business security features in a lighter 14-inch chassis.

Prices

  • Lenovo IdeaPad Slim 3 15.6" N150: $299.99 at PayMore Shopton (last seen Nov 11)
  • Lenovo ThinkBook 14 G4: $449.99 at Best Buy (checked today)
  • Difference: the Lenovo IdeaPad Slim 3 15.6" N150 is $150.00 cheaper than the Lenovo ThinkBook 14 G4 at the latest prices (Nov 11 and Nov 15)
Lenovo
Lenovo IdeaPad Slim 3 15.6" N150 Laptop 15ITN9

Lenovo IdeaPad Slim 3 15.6" N150

Lenovo IdeaPad Slim 3 15.6" N150 Laptop 15ITN9

4.6(56 ratings)
$299.99at PayMore ShoptonChecked Nov 11
See all prices and details
Visit PayMore Shopton
Pros
  • Large 15.6-inch FHD anti-glare screen
  • Number pad speeds up data entry
  • Light for its size at about 3.4 lb
  • SD card reader and USB-C included
  • Quiet, low-power N150 runs cool
Cons
  • N150 struggles with many browser tabs or heavy apps
  • 8 GB RAM and 128 GB storage fill up fast
  • No rated battery life and no security chip listed
  • No dedicated graphics
Lenovo
Lenovo ThinkBook 14 G4 Laptop

Lenovo ThinkBook 14 G4

Lenovo ThinkBook 14 G4 Laptop

4.3(81 ratings)
$449.99at Best BuyChecked 6 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • 10-core Core i7-13620H handles heavy multitasking
  • 16 GB RAM and 256 GB SSD in the tested spec
  • Rated up to 8.2 hours of battery
  • TPM 2.0, privacy shutter and Kensington lock
  • Lighter 14-inch body at about 3.15 lb
Cons
  • Smaller 14-inch screen with no numpad
  • No SD card reader
  • Fans spin up under sustained load
  • Configurations vary, so check the exact RAM and CPU

What separates them

Lenovo IdeaPad Slim 3 15.6" N150Lenovo ThinkBook 14 G4
ProcessorIntel N150, four low-power cores at up to 3.6 GHz13th Gen Intel Core i7-13620H, 10 cores at 2.4 GHz base
Memory8 GB, not meant to be expanded by most owners16 GB DDR4 in the tested configuration
Storage128 GB, eMMC-class flash256 GB SSD
Screen15.6-inch FHD, 60 Hz, anti-glare, with numpad14-inch FHD, 16:9, no numpad
WeightAbout 3.4 lbAbout 3.15 lb (1.43 kg)
BatterySmall low-power CPU, but no rated figure givenRated up to 8.2 hours
SecurityWebcam and standard Windows loginTPM 2.0, webcam privacy shutter, Kensington nano slot
PortsUSB-C 3.2 Gen 1, two USB-A, HDMI, SD reader, headphone jackUSB-A, USB-C, HDMI, headphone jack

Price history

$552.99$299.99
Nov 8Nov 15
  • Lenovo IdeaPad Slim 3 15.6" N150: lowest $299.99 on Nov 8 at PayMore Shopton; $350.00 on Nov 15.
  • Lenovo ThinkBook 14 G4: lowest $449.99 on Nov 10 at Best Buy; $449.99 on Nov 15.

Prices at every store

Lenovo IdeaPad Slim 3 15.6" N150

  • PayMore ShoptonNew

    In stock

    $299.99Checked Nov 11
    Visit PayMore Shopton
  • ThePCWholesale.comNew

    In stock

    $337.00Checked Nov 11
    Visit ThePCWholesale.com
  • eBayNew

    In stockSold by certrbtech

    $350.00Checked 6 h ago
    Visit eBay
  • WalmartNew

    In stockSold by TechZone

    $350.00Checked Nov 11
    Visit Walmart

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

All 14 stores and price history →

Lenovo ThinkBook 14 G4

  • Best BuyNew

    In stock

    $449.99Free shippingChecked 6 h ago
    Visit Best Buy
  • WalmartNew

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

    $557.60Free shippingChecked 6 h ago
    Visit Walmart
  • NeweggNew

    In stock

    $591.99Free shippingChecked 6 h ago
    Visit Newegg
  • StaplesNew

    In stock

    $929.99Free shippingChecked 6 h ago
    Visit Staples

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

All 5 stores and price history →

Specs compared

SpecLenovo IdeaPad Slim 3 15.6" N150Lenovo ThinkBook 14 G4
Operating SystemWindows OSWindows
ColorBlueGray, Black
Screen Size15.6 inches14.0
Screen Resolution1920x1080 (Full HD)1920x1080 (Full HD)
ProcessorIntel Core i5Intel Core i7
Windows VersionWindows 11 HomeWindows 11 Home, Windows 11
SSD Size128 GB256 GB
Hard Drive TypeSSDSSD
WebcamYesYes
Processor Speed (GHz)3.62.4
NumpadYesNo
SeriesLenovo IdeaPad SlimLenovo V14
Show all 40 specsShow fewer specs
SpecLenovo IdeaPad Slim 3 15.6" N150Lenovo ThinkBook 14 G4
Dedicated Graphic CardNoNo
LanguageEnglishFrench, Italian
Processor ModelN15013620H
RAM8 GB16 GB, 8 GB
Resolution1920 x 1080—
Processor BrandIntel CPU—
Graphics ProcessorIntel GPU—
TouchscreenYes—
Drive TypeSolid State Drive—
With No-Glare Screen

What reviewers say

Lenovo IdeaPad Slim 3 15.6" N150

  • 4.6 / 556 ratings

Buyers rate it well for the money, mainly for its screen, light weight and everyday speed. Complaints center on the small drive and the fixed 8 GB of RAM.

What people mention
  • ValuePraisedOwners say it delivers a lot of laptop for a low price.
  • DisplayPraisedThe 1080p antiglare panel is called sharp and easy on the eyes.
  • StorageCriticisedThe 128 GB drive is seen as small and slow.
  • MemoryCriticised8 GB of soldered RAM leaves no upgrade path.

Lenovo ThinkBook 14 G4

  • 4.3 / 581 ratings

Owners rate it 4.3 out of 5 across 81 ratings and generally see it as a lot of laptop for the money. Praise centers on speed for office work, the keyboard and the port selection; complaints focus on the small SSD and average battery life.

What people mention
  • PerformancePraisedOwners say the Core i7-13620H keeps up with many browser tabs and Office apps without stutter.
  • StorageCriticisedThe 256 GB SSD is called out as too small, with buyers planning an upgrade soon after purchase.
  • BatteryCriticisedReviewers report battery life that falls short of a full workday away from an outlet.
  • PortsPraised

Questions and answers

Which is better for schoolwork and office apps?
Both handle Word, email and video calls. The ThinkBook's Core i7 and 16 GB RAM keep more tabs and apps open smoothly, while the IdeaPad's N150 is fine for one or two tasks at a time.
Which lasts longer?
The ThinkBook has the stronger long-term spec: a faster CPU, double the memory and double the storage, plus TPM 2.0 and a privacy shutter. The IdeaPad's 128 GB storage and 8 GB RAM will feel tight sooner.
Is the ThinkBook worth stepping up to?
For work, yes. The Core i7, 16 GB RAM and 256 GB SSD are a clear jump over the N150 and 8 GB, and you get business security features. Step down only if you want the bigger screen and numpad.
Which is better for travel?
The ThinkBook is lighter at about 3.15 lb versus 3.4 lb and has a rated 8.2 hours of battery. The IdeaPad's larger 15.6-inch screen is easier to read but takes more bag space.
Do either have a touchscreen?
The IdeaPad listing says touchscreen yes, but its own highlights describe a standard FHD LCD, so confirm before buying. The ThinkBook is a standard non-touch display.
Can I upgrade the memory or storage?
The ThinkBook's 256 GB SSD is easier to swap and its RAM is DDR4. The IdeaPad's 128 GB is eMMC-class and 8 GB is soldered on most Slim 3 models, so plan on external storage.

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Buying guides that pick them

  • Best everyday Windows laptops over 15 inches under $600
  • Best Lenovo laptops for everyday use
Yes
—
Refresh Rate60Hz—
Weight3.4 lb—
Drive Capacity128 GB drive—
Installed Memory8 GB RAM—
Processor Speed1 GHz CPU—
processor_typeIntel N150—
edition8GB RAM | 128GB eMMC—
Number Of CoresQuad Core—
Available PortsHDMI—
Battery Life12 hours battery life—
Connections—USB-A, HDMI
Bluetooth—Yes
USB Version—USB 2.0 (480Mbps), USB 3.2 Gen 1 (5Gbps)
Memory Type—DDR4
Aspect Ratio—16:9
Processor Cores—10
Convertible/Hybrid—No
Release Year—2026, 2025
The USB-A, USB-C and HDMI selection is praised for avoiding dongles.