ZoomPhoto 1 of 1Lenovo
Lenovo Legion 9i Gen 10 (18IAX10)
Lenovo's 18-inch Legion 9i Gen 10 (18IAX10) pairs the Intel Core Ultra 9 275HX (some configurations use the Core Ultra 9 290HX Plus) with a 175W GeForce RTX 5080 or RTX 5090, an 18-inch 4K 240Hz IPS screen and a 99.9Wh battery. Lenovo announced it in May 2025 for a June launch from 4,499 euros in Europe; the reviewed RTX 5080, 64GB, 2TB configuration sold for about $3,800 in the US.
Pros
- 18-inch 3840x2400 IPS at 240Hz (440Hz at 1920x1200), rated 520 nits and 100% DCI-P3, with G-SYNC, Dolby Vision and DisplayHDR 400
- Core Ultra 9 275HX scored 3,062 single-core and 20,352 multi-core in Geekbench 6.7 in review testing, with up to a 175W GeForce RTX 5090 (24GB) available
- Four DDR5 SO-DIMM slots (up to 192GB) and four M.2 2280 SSD slots, one of them PCIe 5.0
- Wide port selection: two Thunderbolt 5 ports, USB-C, three USB-A, HDMI 2.1, 2.5GbE and an SD card reader
- 99.9Wh battery that Lenovo rates for a 0 to 100% charge in 80 minutes with the 400W adapter
Cons
- Big and heavy: around 3.5kg and up to 27.95mm thick, with a 400W adapter that weighed about 1.2kg in review testing
- Modest battery life: about 5.6 hours of Wi-Fi browsing on the integrated GPU and about 2.5 hours on the discrete GPU in review testing
- Glossy IPS only, with no OLED or mini-LED option and HDR limited to DisplayHDR 400
- No fingerprint reader, and the surfaces collect smudges in review testing
Average
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the Lenovo Legion 9i Gen 10 (18IAX10)
Display
- Screen size
- 18 ″
- Panel type
- IPS (glossy, non-touch, G-SYNC, DisplayHDR 400)
- Resolution
- 3840x2400
- Refresh rate
- 240 Hz
- Peak brightness
- 520 nits
Performance
- Processor
- Intel Core Ultra 9 275HX
- Graphics
- NVIDIA GeForce RTX 5080 Laptop GPU (175W)
- RAM
- 64 GB
- RAM type
- DDR5-5200 (2x SO-DIMM; 4 slots total)
- Storage
- 2,048 GB
- Storage type
- NVMe SSD (4x M.2 2280; one PCIe 5.0 slot, three PCIe 4.0)
Benchmarks
- Geekbench 6 (single)
- 3,062Top 16%
- Geekbench 6 (multi)
- 20,352Top 8%
Battery
- Capacity
- 100 Wh
- Web browsing endurance
- 5.6 h
- Charging
- 400 W
Design
- Weight
- 3.5 kg
- Thickness
- 28 mm
- Material
- Aluminum + forged carbon (top), aluminum (bottom)
Connectivity
- Ports
- 2x Thunderbolt 5 (80Gbps, USB PD 95-100W, DisplayPort 2.1), 1x USB-C (10Gbps), 3x USB-A (10Gbps, one always-on), HDMI 2.1 (up to 8K/60Hz), 2.5GbE RJ-45, SD card reader, 3.5mm combo audio jack
- Wi-Fi
- Wi-Fi 7
- Bluetooth
- 5.4
- Webcam
- 5MP + IR with e-shutter
- Biometrics
- IR camera for Windows Hello face recognition (no fingerprint reader)
Software
- Operating system
- Windows 11 (Home or Pro)
Quick answers
Is the Lenovo Legion 9i Gen 10 (18IAX10) good in 2026?
The Lenovo Legion 9i Gen 10 (18IAX10) earns an Inno Score of 53.2/100 (“Average”) based on its specs and benchmark results. Lenovo's 18-inch Legion 9i Gen 10 (18IAX10) pairs the Intel Core Ultra 9 275HX (some configurations use the Core Ultra 9 290HX Plus) with a 175W GeForce RTX 5080 or RTX 5090, an 18-inch 4K 240Hz IPS screen and a 99.9Wh battery. Lenovo announced it in May 2025 for a June launch from 4,499 euros in Europe; the reviewed RTX 5080, 64GB, 2TB configuration sold for about $3,800 in the US.
What are the key specs of the Lenovo Legion 9i Gen 10 (18IAX10)?
Processor: Intel Core Ultra 9 275HX · RAM: 64 GB · Screen size: 18 ″ · Weight: 3.5 kg
What are the closest alternatives to the Lenovo Legion 9i Gen 10 (18IAX10)?
Its closest rivals on InnoReviews are ASUS ExpertBook B5 G2 (B5405CAA), ASUS ROG Zephyrus G14 (2025), Microsoft Surface Laptop 7 (15-inch) — open the comparison pages for a spec-by-spec breakdown.
