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Lenovo ThinkBook 15 Series

Gen 1 - Gen 4 Models

Processor:

Display:

Cosmetic Condition:

Functionality:

Charger Included?

The Lenovo ThinkBook 15 is a 15.6-inch business laptop line that ran from Gen 1 through Gen 4 between 2020 and 2022, built for small offices and remote workers who wanted ThinkPad-adjacent build quality without the ThinkPad price tag. It sits between Lenovo's consumer IdeaPad line and its ThinkPad flagships, and it shipped under a wide spread of model numbers depending on generation and chip vendor, including 20RW and 20SM (Gen 1), 20VE and 20VG (Gen 2), 21A4 (Gen 3), and 21DL and 21DJ (Gen 4). These units hold value because the chassis is durable, the keyboards are still some of the better ones in this weight class, and the RAM and storage bays are accessible for repair or upgrade rather than sealed shut. Pick your exact configuration and condition above for a live cash offer, and see how the process works if you want the full rundown before you commit. You can also browse what a comparable Lenovo model is worth if you are not sure this is the right listing.

Confirm you have the ThinkBook 15

The fastest way to confirm your exact model is Windows itself. Press Windows key + R, type msinfo32, and hit enter. The "System Model" field will show the model number, which you can match against the list below. You can also flip the laptop over and read the model number printed on the bottom sticker, next to the serial number.

Gen 1 (2020)

  • ThinkBook 15-IML (Intel), 15-API (AMD)
  • 20RW005PUS, 20RW005FUS
  • 20SM0010US, 20SM000YUS, 20SM000XUS, 20SM0014US

Gen 2 (2021)

  • ThinkBook 15 G2 ITL (Intel), G2 ARE (AMD)
  • 20VG series, 20VG007LUS
  • 20VE006UUS

Gen 3 (2021-2022)

  • ThinkBook 15 G3 ITL (Intel), G3 ACL (AMD)
  • 21A4 series
  • 21A4003KUS, 21A4002HUS

Gen 4 (2022)

  • ThinkBook 15 G4 IAP (Intel), G4 ABA (AMD)
  • 21DLX003US, 21DL000EUS, 21DL000JUS
  • 21DJ00G1US, 21DJ000VUS

Prefer a visual check? All four generations keep a full-size keyboard with a numeric keypad and a ThinkBook logo on the lower-right corner of the lid, in Mineral Grey or, on some AMD configurations, Abyss Blue. None of them carry a TrackPoint nub in the keyboard, which is the quickest way to rule out a ThinkPad at a glance.

Core hardware configurations

Processor

  • Intel Core i5 or i7, 10th, 11th, or 12th Gen
  • AMD Ryzen 5 or Ryzen 7, 4000 or 5000 series
  • Newer generation and the Core i7 or Ryzen 7 tiers move resale value the most

Graphics

  • Integrated Intel UHD or Iris Xe graphics on Intel configurations
  • Integrated AMD Radeon graphics on Ryzen configurations
  • No discrete GPU on the configurations covered by this page

Memory & storage

  • DDR4 memory, accessible through a bottom panel on most units
  • M.2 NVMe SSD storage, replaceable on most configurations
  • Higher RAM and SSD tiers add to value but matter less than processor generation

Display & audio

Display

15.6-inch FHD panel, offered as Non-Touch or Touchscreen depending on configuration. Anti-glare coating on the standard panel keeps reflections down in office lighting.

Audio

Dual stereo speakers tuned with Dolby Audio, paired with a dual-array microphone for video calls.

Security

Most configurations build a fingerprint reader into the power button, and some later units add an IR camera for Windows Hello face sign-in.

Ports & connectivity

Port layout stayed close to this template across all four generations, with small changes to USB-C capability from Gen 2 onward.

Left side
  • USB-C (data, on Gen 2 and later)
  • HDMI
  • RJ45 Ethernet
Right side
  • USB-A ports (two or three depending on generation)
  • Headphone and microphone combo jack
  • Wi-Fi and Bluetooth (no wired equivalent)

15.6" FHD display Backlit keyboard Numeric keypad Fingerprint reader RJ45 Ethernet Dolby Audio Rapid Charge support

Battery, build & more

Battery

Internal lithium-polymer battery charged through the included AC adapter, with Rapid Charge support on most configurations for a fast partial top-up.

Finishes

Mineral Grey is the standard finish across the series, with Abyss Blue appearing on some AMD-based configurations.

Software

Ships with the version of Windows 10 or Windows 11 current at the time of manufacture, and is eligible for the free Windows 11 upgrade path where hardware allows.

Market positioning

Positioned as an everyday business laptop rather than a premium ultraportable, which keeps used prices accessible and demand steady across all four generations.

Frequently asked questions

01 How do I find the model number or exact configuration?
Press Windows key + R, type msinfo32, and press enter; the System Model field shows your exact model number. You can also turn the laptop over and read the sticker on the bottom cover, which lists the model number next to the serial number and MTM code. If Windows will not boot, the bottom sticker is your only option, so check it before you assume the unit is unidentifiable. Matching that number against the generation list above tells you the processor family and year, which is what determines the configuration options available on this page.
02 How do I tell it apart from a Lenovo ThinkPad E15?
Look at the keyboard and the lid. The ThinkPad E15 has a red TrackPoint nub in the center of the keyboard and ThinkPad branding on the lid, usually in black. The ThinkBook 15 has no TrackPoint nub anywhere on the keyboard, and its lid carries the ThinkBook logo in the lower-right corner, finished in Mineral Grey or Abyss Blue rather than matte black. If the keyboard has a small red dot between the G, H, and B keys, you have a ThinkPad, not a ThinkBook.
03 Can I sell it with damage, a weak battery, or a locked account?
Yes, most laptops with a cracked screen, a battery that no longer holds a charge, or a unit that will not power on are still worth listing, since the condition picker above adjusts the offer to match. What you cannot skip is account removal: sign out of any Microsoft account tied to the machine and remove it from device management before shipping, since a locked account can stop us from testing the unit and paying out. A powered-off laptop with an unremoved account still needs that step handled once it is back on if at all possible, or flagged when you request your quote.
04 What raises the trade-in value the most?
Processor generation and condition grade move the offer the most. A 12th Gen Intel Core i7 or Ryzen 7 5000 configuration will always outvalue an equivalent 10th Gen or Ryzen 4000 unit, since newer silicon has more life left in it for the next owner. After that, cosmetic condition, a working battery, and an intact charger matter more than RAM or storage tier. A clean, functional Gen 2 or Gen 3 unit in excellent condition often outperforms a Gen 4 unit with a cracked screen or dead battery.
05 How do I erase it, remove my accounts, and get paid?
Go to Settings → System → Recovery → Reset this PC and choose "Remove everything" to wipe the drive. Before you do, go to Settings → Accounts and remove the device from your Microsoft account, and if BitLocker is enabled, suspend it first so the reset does not stall on an encryption key prompt. Once the reset finishes, the laptop is clean of your data and ready to ship. Shipping is free and insured, and payment goes out after our team tests the unit, using PayPal, Venmo, Zelle, CashApp, or check. Full details on the wipe process are in our data erasure protocols.