Review Lenovo IdeaPad Slim 3i 15IRU9
Lenovo IdeaPad Slim 3i 15 · Core 5 120U · Iris Xe G7
Intel Core 5 120U · Intel Iris Xe Graphics G7 80EUs · 16GB DDR5-5200 (soldered) · 1TB SSD (Samsung PM9C1a) · 15.6″ 1920×1080 IPS 60Hz · 1.604 kg
Good single-thread performance – integrated SD card reader,
thin for the size and price, relatively easy to service,
inexpensive.
Turbo Boost performance could be better, old AC barrel charger,
spongy keyboard and clickpad, average battery life,
no full sRGB colors.
Good option if you can find it on sale – budget laptop with compromises.
Display – 15.6″ IPS · 1920×1080 · 60Hz · 58.3% sRGB
Panel: LEN156FHD – 15.6″ 1920×1080, IPS, matte, 60Hz, touch.
| Specification | Value |
|---|---|
| Brightness (centre) | ~340 cd/m² |
| Contrast | 1134:1 |
| sRGB coverage | 58.3% |
| AdobeRGB coverage | 40.8% |
| Display P3 coverage | 39.5% |
| Response time (B/W) | 19.9 ms |
| Response time (grey) | 27.4 ms |
| PWM | Not detected |
| Finish | Matte |
- Good contrast ratio (1134:1)
- No PWM flickering
- Very poor colour accuracy (ΔE 5.01)
- Limited sRGB coverage (58.3%)
Poor colour space (58% sRGB) – not suitable for photo editing.
Panel FRU: LEN156FHD (15.6″ 1920×1080 IPS, 60Hz, matte, touch)
Processor – Intel Core 5 120U · 10c/12t · Raptor Lake-U Refresh
- Model: Intel Core 5 120U – 2× P-Core, 8× E-Core
- Boost: 5.0 GHz (P-Core)
- TDP: 50 W PL2 / 20 W PL1 (sustained)
- Cinebench R23 Multi: ~7,862 pts
- Good single-thread performance
CPU FRU: Intel Core 5 120U (Raptor Lake-U Refresh, soldered BGA)
Graphics – Intel Iris Xe Graphics G7 80EUs · integrated
- Model: Intel Iris Xe Graphics G7 80EUs
- 3DMark Time Spy: ~1,496 pts
- Cyberpunk 2077 (FHD Low): ~14.9 fps
- Limited gaming performance
| Benchmark | Score |
|---|---|
| 3DMark Time Spy | 1,496 |
| 3DMark Fire Strike | 4,203 |
| 3DMark 11 Performance | 6,033 |
| Cyberpunk 2077 (FHD Low) | ~14.9 fps |
GPU FRU: Intel Iris Xe Graphics G7 80EUs (integrated, DDR5)
Memory – 16GB DDR5-5200 · soldered · not upgradeable
- Capacity: 16 GB DDR5-5200 (onboard, dual-channel)
- Soldered – not upgradeable
RAM is soldered – no upgrade options.
RAM FRU: DDR5-5200 16GB (onboard) – not replaceable
Storage – 1TB Samsung PM9C1a · PCIe 4.0 · M.2 2280
- Drive: Samsung PM9C1a MZAL81T0HDLB – 1 TB, PCIe 4.0
- Seq. read: ~6,176 MB/s
- Seq. write: ~3,826 MB/s
- Single M.2 2280 slot – no secondary slot
SSD FRU: Samsung PM9C1a MZAL81T0HDLB (1 TB, M.2 2280, PCIe 4.0)
Battery – ~7 hours · 47 Wh
- Capacity: 47 Wh
- WiFi surfing (150 nits): ~7 hours
- Average battery life
Battery FRU: 47 Wh (internal) – replaceable
AC Adapter FRU: 65W (barrel connector) – not USB-C
Chassis & Connectivity – Plastic · Wi-Fi 6 · HDMI 1.4 · SD card reader
- Materials: Plastic (fingerprint magnet)
- Weight: 1.604 kg (3.54 lbs)
- Dimensions: 359.3 × 235 × 17.9 mm
- Left: AC adapter, USB-A 3.2 Gen1, HDMI 1.4, USB-C 3.2 Gen1 (PD, DP), 3.5mm audio
- Right: SD card reader, USB-A 3.2 Gen1
- No Thunderbolt or USB 4
- Wi-Fi 6 (Realtek RTL8852BE)
- HDMI 1.4 (4K only at 30 Hz)
WLAN FRU: Realtek RTL8852BE (Wi-Fi 6) – M.2 2230, replaceable
Serviceability – RAM soldered · SSD and WLAN replaceable
| Component | Replaceable? | Notes |
|---|---|---|
| SSD | ✅ Yes | M.2 2280 – replaceable |
| RAM | ❌ No | Soldered DDR5 – not upgradeable |
| Wi-Fi | ✅ Yes | M.2 2230 – replaceable |
| Battery | ⚠️ Limited | 47 Wh – internal but replaceable |
| CPU/GPU | ❌ No | Soldered BGA |
RAM is soldered – limited upgradeability.
SSD and Wi-Fi are replaceable.
Components FRU / Model Numbers
| Component | FRU / Model |
|---|---|
| CPU | Intel Core 5 120U (Raptor Lake-U Refresh, soldered) |
| GPU | Intel Iris Xe Graphics G7 80EUs (integrated, DDR5) |
| RAM | DDR5-5200 16GB (onboard) – not upgradeable |
| SSD | Samsung PM9C1a MZAL81T0HDLB (1 TB, M.2 2280, PCIe 4.0) |
| Display Panel | LEN156FHD (15.6″ 1920×1080 IPS, 60Hz, matte, touch) |
| WLAN | Realtek RTL8852BE (Wi-Fi 6) – M.2 2230 |
| Battery | 47 Wh (internal) |
| AC Adapter | 65W (barrel connector) |
Procurement & Reseller Recommendations
CPUCore 5 120U – good single-thread
RAMSoldered – no upgrade
GPUIris Xe G7 – weak
Display58% sRGB – poor colours
Battery7h – average
Value~$690 – good on sale
Key Selling Points vs. Competitors
Strengths
- Good single-thread performance
- Integrated SD card reader
- Thin for the size and price
- Relatively easy to service
- Inexpensive
Weaknesses
- Turbo Boost performance could be better
- Old AC barrel charger
- Spongy keyboard and clickpad
- Average battery life
- No full sRGB colours
Pro tip for resellers & repair professionals:
• Highlight the low price and 1TB SSD – key selling points.
• RAM is soldered – set expectations clearly.
• Poor display (58% sRGB) – not for colour work.
• Easy to service – 10 Torx screws, tool-less access.
• Old AC barrel charger – mention for compatibility.
• Highlight the low price and 1TB SSD – key selling points.
• RAM is soldered – set expectations clearly.
• Poor display (58% sRGB) – not for colour work.
• Easy to service – 10 Torx screws, tool-less access.
• Old AC barrel charger – mention for compatibility.