Lenovo IdeaPad Slim 3i (15", Gen 9) review
Lenovo IdeaPad Slim 3i (15", Gen 9) — from 2024, 1.62 kg, performance 40.
Technical specifications
| Type | Laptop |
| Release year | 2024 |
| Screen | 15.6" · 1920x1080 |
| Processor | Intel Core 3 100U , Intel Core 5 120U , Intel Core 7 150U |
| Max. RAM | 16 GB |
| Weight | 1.62 kg |
| Battery | 47 Wh |
Performance scores
Lenovo IdeaPad Slim 3i 15 Gen 9: the $650 platform workhorse
The 15-inch Gen 9 Slim 3i at $650 is the platform sibling of the 14-inch variant — Core 3 100U, 16GB of RAM — with the same elite reliability of 90 (a 66.7 percent edge on the general-class median) and the same verified minimum-level toolset. The 15-inch format costs portability: 51.4 against the 14-inch's 72.2, both mid-band. The flagged weakness remains memory: 16GB against a class median of 32.
Where it holds up
Reliability of 90 is the strongest general-class figure in this batch alongside its siblings, and it is the machine's core promise. Office reads 68.43 high-band with the 100U clearing minimums for Overwatch, Grand Theft Auto V, Rainbow Six Siege and Visual Studio Code. Value at 62.65 lands mid-band — fair for the platform — and the performance index of 39.81 sits mid-pack. For dependable 15-inch basics at $650, the sheet delivers what the sticker claims.
Where it falls short
Memory at 16GB halves the class median, the flagged limit on a machine meant for everyday duty. Gaming's 64 index is minimum-clearance work: the bars clear, comfort does not arrive. Modeling at 24 and photo design at 20 sit low-band, and the larger chassis buys screen rather than capability — the axes match the 14-inch variant line for line.
Price and depreciation
$650 is the batch's standard general-class price. No listing history anchors this unit, so the class rate of about 13.89 percent a year is the working assumption. Reliability-first machines justify gentle expectations of decay, and this one leads its class on that axis.
Alternatives to consider
The 14-inch Gen 9 (model 1838) posts the identical sheet with far better portability (72.2) — the carry pick. The 16-inch Gen 9 (model 1844) at the same $650 trades a little more portability (44.5) for more screen. The Gen 10 15-inch (model 1839) at $765 adds 24GB of RAM but reads low-band 31.05 on value — this Gen 9 is the rational money.
Bottom line
Fairly priced for the class. A reliability-90 platform with a verified toolset at $650 is easy to defend; the 16GB ceiling and clearance-level gaming are the family's known limits, printed plainly.
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⭐ What stands out
-
reliability is higher than typical general laptop class (+64.8%) (high tier).
top 25% of its category -
memory capacity is lower than typical general laptop class (+50%) (comfort).
below class average -
mobility is higher than typical general laptop class (+31.4%) (mid).
top 25% of its category
🎮 What it can run
⚙️ Configuration analysis
Top configuration handles modern AAA games at high settings, video editing, and heavy multitasking.
🤔 How to choose
Universal advice for any use case.
- Reliability vs price: reliability (median 54) ↔ price (median 247.9).
- Weight vs CPU: mobility (median 51) ↔ overall performance (median 41.9).
- Upgradeability vs battery: upgradability (median 50) ↔ battery life (median 2.5).
IdeaPad Slim 3i (15", Gen 9): verdict
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