Lenovo IdeaPad Slim 3i 15 vs Lenovo Legion Pro 5i Gen 9 (16IRX9)
44Performance59.9
23.3Display55.5
29.3Battery73.3
67.7Portability29.1
2 spec wins — Lenovo IdeaPad Slim 3i 157 spec wins — Lenovo Legion Pro 5i Gen 9 (16IRX9)
InnoReviews verdict
Lenovo Legion Pro 5i Gen 9 (16IRX9) wins this laptop face-off, 56.2 to 39.9, pulling ahead mainly in battery (+44) and display (+32). Lenovo IdeaPad Slim 3i 15 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Lenovo IdeaPad Slim 3i 15
- Stronger portability score: 68 vs 29
- 35% lower weight: 1.62 kg vs 2.5 kg
- 34% lower thickness: 17.9 mm vs 27 mm
- Lower launch price: $549 vs $1,499
Reasons to pick the Lenovo Legion Pro 5i Gen 9 (16IRX9)
- Stronger performance score: 60 vs 44
- Stronger display score: 56 vs 23
- Stronger battery score: 73 vs 29
- 362% higher charging: 300 W vs 65 W
- 300% higher Refresh rate: 240 Hz vs 60 Hz
Display
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Screen size | 15.6 ″ | 16 ″+3% |
| Panel type | IPS | IPS (PureSight) |
| Resolution | 1920x1080 | 2560x1600 |
| Refresh rate | 60 Hz | 240 Hz+300% |
| Peak brightness | 300 nits | 500 nits+67% |
Performance
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Processor | Intel Core i5-1335U | Intel Core i9-14900HX |
| Graphics | Intel Iris Xe Graphics | NVIDIA GeForce RTX 4070 Laptop |
| RAM | 16 GB | 32 GB+100% |
| RAM type | LPDDR5 | DDR5-5600 (2x SO-DIMM) |
| Storage | 512 GB | 1,024 GB+100% |
| Storage type | NVMe SSD | PCIe 4.0 NVMe SSD (2 slots) |
Benchmarks
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Geekbench 6 (single) | — | 2,889Top 48% |
| Geekbench 6 (multi) | — | 18,126Top 29% |
Battery
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Capacity | 47 Wh | 80 Wh+70% |
| Charging | 65 W | 300 W+362% |
Design
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Weight | 1.62 kg+35% | 2.5 kg |
| Thickness | 17.9 mm+34% | 27 mm |
| Material | Polycarbonate | Aluminum lid, plastic (PC-ABS) base |
Connectivity
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Ports | 1x USB-C 3.2 Gen 1, 2x USB-A 3.2 Gen 1, 1x HDMI 1.4, 1x SD card reader, 1x 3.5mm combo audio | 2x USB-C 10Gbps (one with 140W PD, both with DisplayPort 1.4), 4x USB-A 5Gbps, HDMI 2.1, RJ-45 Gigabit Ethernet, 3.5mm combo jack |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6E |
| Bluetooth | 5.1 | 5.2 |
| Webcam | 1080p | 1080p with e-shutter |
| Biometrics | Fingerprint reader | None |
Software
| Spec | Lenovo IdeaPad Slim 3i 15 | Lenovo Legion Pro 5i Gen 9 (16IRX9) |
|---|---|---|
| Operating system | Windows 11 Home | Windows 11 Home |
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