Lenovo IdeaPad Slim 3 15IRH10 15.3″ Core i5-13420H 8GB 512GB Windows 11 Home Luna Grey Specifications
| General | |
|---|---|
| Brand | Lenovo |
| Model | IdeaPad Slim 3 15IRH10 (machine type 83K1) |
| Part Number | 83K100EVSA |
| Product Type | Laptop |
| Colour | Luna Grey |
| Operating System | Windows 11 Home Single Language (English) |
| Bundled Software | Microsoft Office trial |
| Performance | |
| Processor | Intel Core i5-13420H, 8 cores (4P + 4E) / 12 threads, P-core up to 4.6GHz, E-core up to 3.4GHz, 12MB Intel Smart Cache |
| Graphics | Integrated Intel UHD Graphics |
| Memory (RAM) | |
| Installed | 8GB DDR5-4800 |
| Layout | 8GB soldered on board + 1x DDR5 SODIMM slot |
| Free Slots | 1 of 1 SODIMM slot free |
| RAM Type for Upgrades | DDR5-4800 SODIMM (notebook memory) |
| Maximum | 24GB per Lenovo spec (8GB on board + 16GB SODIMM) |
| Upgradable | Yes, add more RAM |
| Storage | |
| Installed | 512GB SSD |
| Type | M.2 2242 PCIe 4.0 x4 NVMe |
| Slots | 2x M.2 2242 PCIe 4.0 x4 |
| Free Slots | 1 of 2 |
| Maximum | 2 drives, up to 1TB each |
| Upgradable | Yes, we can fit a second M.2 2242 SSD (ask our sales team) |
| Display | |
| Size | 15.3″, 16:10 |
| Resolution | (1920 x 1200) WUXGA |
| Panel | IPS, anti-glare, non-touch |
| Brightness / Contrast | 300 nits / 1200:1 |
| Colour Gamut | 45% NTSC |
| Refresh Rate | 60Hz |
| Eye Care | TÜV Rheinland Low Blue Light (software) |
| Cameras & Audio | |
| Webcam | HD 720p with privacy shutter |
| Speakers | Stereo 2W x2, Dolby Audio |
| Microphones | Dual-array |
| Connectivity | |
| Wi-Fi | Wi-Fi 6 (802.11ax) 2×2 |
| Bluetooth | Bluetooth 5.2 |
| USB-A | 2x USB 5Gbps (USB 3.2 Gen 1) |
| USB-C | 1x USB 5Gbps (USB 3.2 Gen 1) with USB PD 45-65W charging and DisplayPort 1.2 |
| HDMI | 1x HDMI 1.4 (up to 4K 30Hz) |
| Card Reader | SD |
| Audio Jack | 3.5mm headphone/mic combo |
| Ethernet | None |
| External Displays | Up to 2 (3 including the built-in screen) |
| Security & Input | |
| Security Chip | Firmware TPM 2.0 |
| Biometrics | None (no fingerprint reader or IR camera) |
| Privacy | Camera privacy shutter |
| Keyboard | Non-backlit, numeric keypad, Copilot key, 1.3mm travel |
| Touchpad | Buttonless Mylar, Precision TouchPad, 75 x 120 mm |
| Battery & Physical | |
| Battery | 50Wh Li-ion, Rapid Charge Boost (about 2 hours’ use from a 15-minute charge) |
| Rated Battery Life | Up to 14.5 hours of local 1080p video at 150 nits (Lenovo figure) |
| Power Adapter | 65W round tip (3-pin) |
| Dimensions | 343.4 x 239.5 x 17.9-18.9 mm |
| Weight | From 1.59 kg |
| Materials | PC-ABS top and bottom |
| Durability | MIL-STD-810H tested (21 tests) |
| In the Box & Warranty | |
| In the Box | Laptop, 65W round-tip power adapter |
| Warranty | 1-year Lenovo carry-in |
Jump to: Key Features | Video Review | Who Is It For? | Performance | Ports | Upgrades | Benchmarks | Other Configurations | Display & Battery | In the Box | FAQs
Key Features
- Processor: Intel Core i5-13420H, 8 cores / 12 threads, up to 4.6GHz
- Memory: 8GB DDR5-4800 on board, plus a free SODIMM slot for upgrades
- Storage: 512GB PCIe 4.0 NVMe SSD, plus a free M.2 2242 slot
- Display: 15.3″ WUXGA (1920 x 1200) IPS, anti-glare, 300 nits
- Connectivity: Wi-Fi 6, Bluetooth 5.2, USB-C with charging and DisplayPort, 2x USB-A, HDMI, SD card reader
- Webcam: 720p with privacy shutter
- Keyboard: Full-size with numeric keypad and Copilot key
- Build: MIL-STD-810H tested, from 1.59 kg
- Operating System: Windows 11 Home
Video Review
Unboxing and review of the IdeaPad Slim 3 15IRH10 by Techo AV.
Who Is It For?
The IdeaPad Slim 3 15IRH10 is a good everyday laptop for students, home offices and admin staff. The i5-13420H is an 8-core H-series processor, so it has more headroom than the low-power chips in many laptops at this price. The 16:10 screen shows more of a document or spreadsheet, the numeric keypad helps with number work, and you can add RAM and a second SSD later.
It isn’t the right choice if you need a backlit keyboard, want to play modern games or edit video seriously (see our gaming laptops), or need a colour-accurate screen. For business features like Windows 11 Pro and onsite warranty, have a look at our Lenovo ThinkPad range.
Performance
| Task | How it handles it |
|---|---|
| Office, email and browsing | Very well |
| Video calls (Teams, Zoom) | Well. The 720p webcam is basic. |
| Lots of tabs and apps open | Fine on 8GB, noticeably better with 16GB |
| Large Excel files and Power BI | Well. 16GB recommended for big files. |
| Coding and IT studies | Well. 16GB or more for virtual machines. |
| Photo editing | Light edits. The screen isn’t colour-accurate. |
| Video editing | Short 1080p clips only. There’s no dedicated graphics card. |
| Gaming | Older and lighter games at low settings |
| Copilot+ AI features | Not supported (no NPU). The Copilot key and Copilot app still work. |
Things to Know Before You Buy
- The keyboard isn’t backlit.
- 8GB of the RAM is soldered to the board. The free slot takes one more module, and adding one also switches the memory to dual-channel, which helps the built-in graphics.
- There’s no fingerprint reader or face login. Windows Hello uses a PIN.
- There’s no Ethernet port. Use a USB network adapter or a USB-C docking station.
- HDMI 1.4 runs 4K monitors at 30Hz. For 4K at 60Hz, use the USB-C port.
- It comes with a Microsoft Office trial, not full Office.
Ports
| Port | Specification | Good for |
|---|---|---|
| USB-C x1 | USB 5Gbps, USB PD 45-65W charging, DisplayPort 1.2 | Charging, a 4K 60Hz monitor, or a docking station |
| USB-A x2 | USB 5Gbps (USB 3.2 Gen 1) | Mouse, keyboard, flash drives, external drives |
| HDMI x1 | HDMI 1.4, up to 4K 30Hz | TVs, projectors, 1080p monitors |
| SD card reader | Full-size SD | Camera memory cards |
| Audio jack | 3.5mm combo | Headsets with a mic |
| Power | 65W round tip | The included charger |
| Wireless | Wi-Fi 6 (2×2), Bluetooth 5.2 | Wireless networks, mice and earbuds |
Not on this model: Ethernet, Thunderbolt or a fingerprint reader. You can run two external monitors at once, one on HDMI and one on USB-C.
Upgrades
RAM: 8GB DDR5-4800 is soldered to the board and there’s one free DDR5 SODIMM slot. Choose a memory upgrade at the top of this page and we’ll fit it for you. Going to 16GB also switches the memory to dual-channel.
SSD: There are two M.2 2242 PCIe 4.0 slots and one is free, so a second drive of up to 1TB can be added. Ask our sales team and we’ll fit one for you.
Want 16GB from the start? See the 16GB version (83K100EVSA+8).
Benchmarks
PassMark CPU Mark scores (multi-core, higher is better), October 2026.
| Processor | Found in | CPU Mark | Compared to this laptop |
|---|---|---|---|
| Intel Core i7-13620H | IdeaPad Slim 3 Core i7 version | 23,184 | 38% faster |
| AMD Ryzen 7 5825U | IdeaPad Slim 3 15ABR8 | 17,779 | 6% faster |
| Intel Core i5-13420H | This laptop | 16,755 | – |
| Intel N100 | Entry-level laptops such as the HP 250 G10 | 5,303 | 68% slower |
In single-core tests, which affect how quick everyday apps feel, the i5-13420H scores 3,345 against 2,988 for the Ryzen 7 5825U.
Other Configurations
| This laptop (83K100EVSA) | 16GB version (83K100EVSA+8) | Core i7 version (83K100EWSA) | |
|---|---|---|---|
| Processor | Core i5-13420H | Core i5-13420H | Core i7-13620H |
| Cores / threads | 8 / 12 | 8 / 12 | 10 / 16 |
| Max boost | 4.6GHz | 4.6GHz | 4.9GHz |
| Cache | 12MB | 12MB | 24MB |
| Memory | 8GB DDR5-4800 | 16GB DDR5-4800 | 16GB DDR5-4800 |
| RAM layout | 8GB on board + empty SODIMM slot | 8GB on board + 8GB SODIMM | 8GB on board + 8GB SODIMM |
| Free RAM slots | 1 | 0 | 0 |
| Storage | 512GB SSD | 512GB SSD | 512GB SSD |
| Free SSD slots | 1 | 1 | 1 |
| Screen | 15.3″ 1920 x 1200 | 15.3″ 1920 x 1200 | 15.3″ 1920 x 1200 |
| PassMark CPU Mark | 16,755 | 16,755 | 23,184 |
| You’re viewing this one | View 16GB version | View Core i7 version |
Display & Battery
The 15.3″ screen has a 16:10 shape, so 1920 x 1200 gives you about 11% more vertical space than a standard 1080p screen. At 300 nits with an anti-glare finish, it’s comfortable in offices and classrooms. Colour coverage is 45% NTSC, which is fine for work and video but not for colour-critical photo or design work.
Lenovo rates the 50Wh battery at up to 14.5 hours of local 1080p video playback at 150 nits. Expect less with a brighter screen and heavier apps. Rapid Charge Boost gives about 2 hours of use from a 15-minute charge. You can charge it with the included 65W round-tip adapter or a USB-C Power Delivery charger or power bank rated 45W or more.
In the Box & Warranty
| In the Box | Lenovo IdeaPad Slim 3 15IRH10, 65W round-tip power adapter |
| Warranty | 1-year Lenovo carry-in |
| Software | Microsoft Office trial (not full Office) |
Lenovo IdeaPad Slim 3 15IRH10 FAQs
Performance and Use
Is the IdeaPad Slim 3 15IRH10 good for students?
Yes. The 8-core Core i5-13420H handles Office, research, Teams and coding comfortably, the 16:10 screen fits more of a document, and it’s MIL-STD-810H tested. Add 8GB of RAM if you keep lots of tabs open.
Is it good for gaming?
Only for light or older games at low settings. It uses integrated Intel UHD Graphics, with no dedicated graphics card. For gaming, see our gaming laptops.
Can it handle photo or video editing?
Light photo edits and short 1080p projects, yes. Longer edits will be slow without a dedicated graphics card, and the 45% NTSC screen isn’t colour-accurate.
Is it a Copilot+ PC?
No. It has a Copilot key, but the Core i5-13420H has no NPU, which Copilot+ PCs need. Copilot itself still works.
Is 8GB of RAM enough?
For Office, browsing and video calls, yes. For heavy multitasking or coding, go to 16GB: choose a memory upgrade at the top of this page, or buy the 16GB version.
Upgrades
Can I upgrade the RAM?
Yes. 8GB is soldered to the board and there’s one free DDR5 SODIMM slot. Lenovo lists a maximum of 24GB (8GB + 16GB). Adding a module also turns on dual-channel memory. Choose a memory upgrade at the top of this page and we’ll fit it for you.
Can I add a second SSD?
Yes. There are two M.2 2242 PCIe 4.0 x4 slots and one is free. It takes drives of up to 1TB each. Ask our sales team and we’ll fit one for you.
Can you do the upgrade for me?
Yes. Choose a memory upgrade at the top of this page, or ask our sales team about a second SSD, and we’ll fit it for you.
Screen, Ports and Monitors
Is it a touchscreen?
No. This model has a non-touch 15.3″ IPS anti-glare screen.
Does it have a backlit keyboard?
No, this configuration has a non-backlit keyboard.
How many monitors can I connect?
Two external monitors plus the built-in screen: one on HDMI 1.4 (up to 4K at 30Hz) and one on USB-C with DisplayPort 1.2 (up to 4K at 60Hz).
Does it have an Ethernet port?
No. Use a USB Ethernet adapter or a USB-C docking station.
Does it have Thunderbolt?
No. The USB-C port is USB 5Gbps (USB 3.2 Gen 1) with charging and DisplayPort output.
Battery and Power
What’s the battery life?
It has a 50Wh battery. Lenovo rates it at up to 14.5 hours of local 1080p video playback at 150 nits. Mixed work with a brighter screen will be noticeably shorter.
Can it charge via USB-C?
Yes. The USB-C port accepts USB Power Delivery at 45-65W, so a 65W USB-C charger or a 45W+ USB-C PD power bank will charge it. It also comes with a 65W round-tip charger.
Does it fast charge?
Yes. Rapid Charge Boost gives about 2 hours of use from a 15-minute charge (Lenovo figure).
Software and Security
Does it come with Microsoft Office?
It includes an Office trial only. Microsoft 365 or Office Home is sold separately in our software section.
Which version of Windows is installed?
Windows 11 Home Single Language (English). You can upgrade to Windows 11 Pro if you need Pro features such as domain join or Group Policy.
Does it have a fingerprint reader or face unlock?
No. There’s no fingerprint reader or IR camera, so Windows Hello uses a PIN. It does have a physical webcam shutter and Firmware TPM 2.0.
Warranty and Buying
What warranty does it have?
A 1-year Lenovo carry-in warranty.
What’s in the box?
The laptop and a 65W round-tip power adapter.
Can I buy in bulk for a school or office?
Yes. Use the Volume Discount or Request Quote button at the top of this page and we’ll quote the full order.
Why Buy from PC International
PC International has supplied computers from Randburg, Johannesburg since 1994. We’re a Lenovo Platinum Partner and BBBEE Level 1, with a showroom at 200 Bram Fischer Drive, Randburg. Schools, NGOs and businesses can request volume quotes, and you can choose delivery or Click & Collect.
