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Dell Inspiron 15 Touchscreen Laptop vs Dell Inspiron 16 5645 Laptop

The Inspiron 16 5645 is the stronger machine on nearly every spec: a Ryzen 7 8840U with 8 cores and 16 threads, 16 GB of DDR5, a 1 TB SSD, a bigger 54Whr battery and Wi-Fi 6E. The Inspiron 15 touchscreen is lighter and has an anti-glare touch panel, but its 8 GB DDR4 and 41Whr battery hold it back. Buy the 16 if you want headroom for multitasking, storage and battery life; buy the 15 only if a smaller, lighter touchscreen laptop matters more than power.

  • Choose the Inspiron 15 Touchscreen if you want a lighter 15.6-inch laptop with a touch display and you mostly browse, stream and write documents.
  • Choose the Inspiron 16 5645 if you want more cores, more memory, more storage and longer battery life for heavier multitasking, study or creative work.

Prices

  • Dell Inspiron 15 Touchscreen Laptop: $524.70 at Amazon (last seen Nov 4)
  • Dell Inspiron 16 5645 Laptop: $999.99 at Amazon (checked today)
  • Difference: the Dell Inspiron 15 Touchscreen Laptop is $475.29 cheaper than the Dell Inspiron 16 5645 Laptop at the latest prices (Nov 4 and Nov 10)
Dell
Dell Inspiron 15 Touchscreen Laptop

Dell Inspiron 15 Touchscreen Laptop

4.4(39 ratings)
$524.70at AmazonChecked Nov 4
See all prices and details
Visit Amazon

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

Pros
  • Lighter at about 3.66 lb
  • Anti-glare touchscreen cuts reflections
  • Runs cooler and quieter on light tasks with efficient U-series cores
  • Has an SD card reader and USB-C
Cons
  • 8 GB DDR4 RAM limits heavy multitasking
  • Smaller 41Whr battery
  • Non-backlit keyboard
  • 720p webcam and Wi-Fi 6 only
Dell
Dell Inspiron 16 5645 Laptop

Dell Inspiron 16 5645 Laptop

5(1 rating)
$999.99at AmazonChecked 12 h ago
See all prices and details
Visit Amazon

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

Pros
  • Ryzen 7 8840U with 16 threads handles heavier workloads
  • 16 GB DDR5 and a 1 TB SSD leave room to grow
  • Longer battery life from the 54Whr cell
  • Backlit keyboard with numeric keypad, 1080p webcam, Wi-Fi 6E
Cons
  • Heavier at about 4.12 lb
  • Memory is capped at 16 GB
  • No SD card reader listed

What separates them

Dell Inspiron 15 Touchscreen LaptopDell Inspiron 16 5645 Laptop
ProcessorIntel Core i5-1334U, 10 cores (2P + 8E), 12 threads, up to 4.6 GHzAMD Ryzen 7 8840U, 8 cores, 16 threads, up to 5.1 GHz
Memory8 GB DDR4-2666, one slot, 16 GB max16 GB DDR5-5600, two 8 GB modules
Storage512 GB PCIe NVMe SSD1 TB PCIe NVMe SSD
Display15.6-inch FHD IPS touch, anti-glare, 220 nits, 60Hz16-inch FHD touchscreen
Battery3-cell 41Whr, rated about 8 hours4-cell 54Whr, rated up to 11 hours 20 minutes
WeightAbout 3.66 lbAbout 4.12 lb
WirelessWi-Fi 6 (802.11ax)Wi-Fi 6E (802.11ax), adds the 6 GHz band
Keyboard and cameraNon-backlit keyboard, 720p HD webcamBacklit keyboard with numeric keypad, 1080p FHD webcam

Price history

$1,099.99$499.99
Oct 30Nov 10
  • Dell Inspiron 15 Touchscreen Laptop: lowest $499.99 on Nov 3; $524.70 on Nov 4.
  • Dell Inspiron 16 5645 Laptop: lowest $969.00 on Nov 10 at Walmart.

Prices at every store

Dell Inspiron 15 Touchscreen Laptop

  • AmazonNew

    Availability unknown

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

    $524.70Checked Nov 4
    Visit Amazon
  • eBayNew

    Availability unknown

    $529.85Checked Nov 4
    Visit eBay
  • Best BuyNew

    Availability unknown

    $549.00Checked Nov 4
    Visit Best Buy
  • WalmartNew

    Availability unknown

    $579.99Checked Nov 3
    Visit Walmart

Also available at

  • WalmartCheck price at Walmart

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All 9 stores and price history →

Dell Inspiron 16 5645 Laptop

  • WalmartNew

    In stockSold by CompNex Tech Solutions

    $969.00Free shippingChecked 12 h ago
    Visit Walmart
  • AmazonNew

    Availability unknown

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

    $999.99Free shippingChecked 12 h ago
    Visit Amazon
  • WalmartNew

    Out of stockSold by Top Gifts of Tech, LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $699.00Free shippingChecked 12 h ago
    Visit Walmart
All 2 stores and price history →

Specs compared

SpecDell Inspiron 15 Touchscreen LaptopDell Inspiron 16 5645 Laptop
colorGrayBlue
Operating SystemWindows OSWindows 11 Home, English, French, Spanish
Screen Size15.6 inches16 in
Memory8 GB: 1 x 8 GB, DDR4, 2666 MT/s16 GB: 2 x 8 GB, DDR5, 5600 MT/s
Storage512 GB, M.2 2230, PCIe NVMe, SSD1 TB, M.2, PCIe NVMe, SSD
Power Adapter65 Watt AC adapter65 Watt AC adapter
WirelessRealtek Wi-Fi 6 RTL8852BE, 2x2, 802.11ax, MU-MI…Realtek Wi-Fi 6E RTL8852CE, 2x2, 802.11ax, MU-M…
KeyboardEnglish US non-backlit keyboardIce Blue English Backlit Copilot Key Keyboard, …
TouchscreenYesY
Battery Life8 hours battery lifeUp to 11 hours, 20 minutes
edition8GB RAM|512GB SSD—
Resolution1920 x 1080—
Show all 40 specsShow fewer specs
SpecDell Inspiron 15 Touchscreen LaptopDell Inspiron 16 5645 Laptop
Processor BrandIntel CPU—
Graphics ProcessorIntel GPU—
Drive Capacity512 GB drive—
Installed Memory16 GB RAM—
Display39.6cm (15.6"), Touch, FHD, IPS, 45% NTSC, Anti…—
GraphicsIntel® Graphics—
Battery3-Cell Battery, 41WHr (Integrated)—
HDMI Port1 HDMI 1.4 port—
Weight4.19 lb (1.90 kg)—
Audio

What reviewers say

Dell Inspiron 15 Touchscreen Laptop

  • 4.4 / 539 ratings

Rated 4.4 out of 5 from 39 ratings. Buyers generally find it a solid everyday laptop for the money, with a responsive touchscreen and fast SSD. Complaints center on the dim display and the limited 8GB of memory.

What people mention
  • DisplayCriticisedOwners say the 220-nit, 45% NTSC panel looks washed out and struggles in bright rooms.
  • PerformancePraisedThe Core i5 and SSD keep everyday tasks and startup quick.
  • MemoryCriticised8GB of RAM is seen as tight for heavy multitasking.
  • Build and weightPraisedAt 3.66 lb it is easy to carry for a 15.6-inch laptop.
Reviews
  • The Best Dell Laptops for 2026

Questions and answers

Which is better for multitasking?
The Inspiron 16 5645. Its Ryzen 7 8840U has 16 threads and 16 GB of DDR5, while the Inspiron 15 has 8 GB of DDR4 and a 12-thread Core i5.
Which has better battery life?
The Inspiron 16 5645. Dell rates it up to 11 hours 20 minutes from a 54Whr battery, against about 8 hours from the Inspiron 15's 41Whr cell.
Is the Inspiron 16 worth stepping up to?
Yes for most buyers. You get double the memory, double the storage, more cores and a bigger battery; the main trade-off is about half a pound more weight.
Which is better for travel?
The Inspiron 15 is lighter at about 3.66 lb and its anti-glare screen helps outdoors, but the Inspiron 16 lasts longer unplugged.
Do both have touchscreens?
Yes. Both listings specify touch displays, so the choice comes down to size, power and battery rather than touch support.
Which is better for video calls?
The Inspiron 16 5645, which has a 1080p webcam and dual-array microphones; the Inspiron 15 uses a 720p HD camera.

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Buying guides that pick them

  • Best Dell laptops for everyday home and work use
2 tuned speakers
—
Drive TypeSolid State Drive—
With No-Glare ScreenYes—
Refresh Rate60Hz—
Available PortsHDMI—
Energy StarYes—
Processor Speed4.6 GHz CPU—
hard_drive_capacity512 GB—
ram_memory16 GB—
Processor—AMD Ryzen™ 7 8840U 8-core/16-thread Processor w…
Graphics Card—AMD Radeon™ Graphics
Battery Capacity—4-Cell Battery, 54WHr (Integrated)
Starting Weight—4.12 lbs (1.87 kg)
Camera—1080p at 30 fps FHD RGB camera, Dual-array micr…
Proc. Brand—AMD
HD Capacity—1 TB
Graphic Card—AMD Radeon Graphics
Laptop Type—PC Laptops
Core Count—8