Lenovo IdeaPad 15.3" Slim 3i 2025, Core Ultra 7 355, 16GB, 512GB SSD, Cosmic Blue

★★★★★ 4.6 (4)

The Intel Core Ultra 7 355 8-core processor with a built-in NPU powers this 15.3-inch IPS display, offering 120Hz refresh, 400 nits brightness, and 100% sRGB coverage. The 60Wh battery and Wi-Fi 7 connectivity make it a portable option for daily tasks, while the touchscreen and backlit keyboard add convenience. Best for business users and students who need a reliable all-rounder for productivity and entertainment, not for gaming.

CPU Intel Core Ultra 7 355
RAM 16 GB
Storage 512 GB
Screen 15.3" 1920x1200
GPU Intel Graphics
OS Windows 11 Home
Weight 1.6 kg
Battery 60 Wh
Lenovo IdeaPad 15.3" Slim 3i 2025, Core Ultra 7 355, 16GB, 512GB SSD, Cosmic Blue laptop
59 Overall Score

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Snapshot

The 30-Second Version

The IdeaPad Slim 3i nails the basics: strong CPU, excellent 120Hz display, and solid reliability. Gaming performance is abysmal at 18.2 out of 100, and the $1,400 price tag feels steep for integrated graphics. Worth it for productivity-focused buyers who value that screen, skip it if you need any GPU muscle.

Pros & Cons

Pros

  • Bright 120Hz IPS display with full sRGB coverage 82nd
  • Strong CPU performance for everyday productivity 79th
  • Lightweight at 1.63kg with a touchscreen and backlit keyboard 72nd
  • Wi-Fi 7 support keeps you future-proofed on connectivity

Cons

  • Integrated graphics make gaming a non-starter
  • Only one USB-C port and HDMI 1.4 limits external display options
  • 512GB storage is just average for the price
  • Port selection overall is below the midpoint of our database

The proof

Performance

The Core Ultra 7 355 sits at the 70th percentile for CPUs in our database, which means it's well above average for everyday tasks. Spreadsheets, browser tabs, video calls, light photo editing, all fine. The 16GB of DDR5 RAM is solidly middle of the pack, and the 512GB NVMe SSD lands right around average for storage. The integrated GPU is the bottleneck, sitting at the 56th percentile, which sounds okay until you realize that's compared against laptops that include dedicated graphics. For anything GPU-heavy, this machine taps out fast. The display is a genuine highlight, ranking in the top quarter of screens we've tested, and reliability scores are strong too.

Performance Percentiles

CPU 71.6
GPU 56.3
RAM 59.8
Ports 48.4
Screen 78.8
Portability 57.2
Storage 51.1
Reliability 81.8
Social Proof 48.9
Affordability 36.2

Specifications

Full Specifications

Processor

CPU Intel Core Ultra 7 355
Cores 8
Frequency 3.5 GHz
L3 Cache 12 MB

Graphics

GPU Intel Graphics
Type Integrated

Memory & Storage

RAM 16 GB
RAM Generation DDR5
Storage 512 GB
Storage Type NVMe SSD

Display

Size 15.3"
Resolution 1920x1200 (Full HD)
Panel IPS
Refresh Rate 120 Hz
Brightness 400 nits
Color Gamut 100% sRGB

Connectivity

USB-C Ports 1
USB Ports 2
HDMI HDMI 1.4
Wi-Fi Wi-Fi 7
Bluetooth Bluetooth 5.4

Physical

Weight 1.6 kg / 3.6 lbs
Battery 60 Wh
OS Windows 11 Home

vs Competition

Stacked against the competition, the Slim 3i occupies an awkward middle ground. The Apple MacBook Pro M4 Max and ASUS ROG Zephyrus G14 absolutely demolish it in raw performance, but they're also different beasts entirely. The Microsoft Surface Laptop 7th Edition is the more natural rival, offering a similar productivity focus with better build quality and a more premium feel. The HP OMEN Transcend 14 and MSI Raider are gaming machines that trade blows on GPU power but lose the portability battle. The Slim 3i's real advantage is that display and the Copilot+ NPU, but it's not enough to leapfrog the Surface for most buyers.

Spec Lenovo IdeaPad 15.3" Slim 3i Apple MacBook Pro M4 Max ASUS ROG Zephyrus GA403WW-G14.R95080 HP OMEN Transcend MSI Raider RAIDERGE6814247 Dell Premium LDA14250-7667SLV-PUS
CPU Intel Core Ultra 7 355 Apple M4 Max AMD Ryzen AI 9 HX 370 Intel Core Ultra 9 285H Intel Core i9 14900HX Intel Core Ultra 7 255H
RAM (GB) 16 64 32 32 32 32
Storage (GB) 512 4096 2048 1024 2048 1024
Screen 15.3" 1920x1200 14.2" 3024x1964 14" 2880x1800 14" 2880x1800 16" 3840x2160 14.5" 3200x2000
GPU Intel Graphics Apple (40-Core) NVIDIA GeForce RTX 5080 NVIDIA GeForce RTX 5070 NVIDIA GeForce RTX 4070 Intel Arc Graphics
OS Windows 11 Home macOS Windows 11 Home Windows 11 Home Windows 11 Home Windows 11 Home
Weight (kg) 1.6 1.6 1.6 1.6 2.7 1.7
Battery (Wh) 60 72 - 71 100 62
Compare Compare Compare Compare Compare
Product CPUGPURAMPortsScreenPortabilityStorageReliabilitySocial ProofAffordability
Lenovo IdeaPad 15.3" Slim 3i 71.656.359.848.478.857.251.181.848.936.2
Apple MacBook Pro M4 Max Compare 93.890.795.773.599.36998.598.187.71.6
ASUS ROG Zephyrus GA403WW-G14.R95080 Compare 91.297.490.989.496.673.789.860.498.45.5
HP OMEN Transcend Compare 90.192.689.789.496.672.365.333.497.28.4
MSI Raider RAIDERGE6814247 Compare 93.294.586.498.5989.393.960.451.210.2
Dell Premium LDA14250-7667SLV-PUS Compare 87.168.889.166.297.361.165.333.497.212.9

Price

Value & Pricing

At $1,400 USD, this is a tricky sell. You're paying for the Core Ultra 7 and that excellent display, but you're also getting integrated graphics, a single USB-C port, and HDMI 1.4 that caps out at 4K 30Hz. For the same money, you can find laptops with dedicated GPUs or more storage. The value proposition hinges entirely on whether you care about the Copilot+ features and that 120Hz screen. If you do, it's reasonable. If you don't, you're overpaying for specs you won't feel.

Read more

Overview

The Lenovo IdeaPad Slim 3i is a 15.3-inch Copilot+ PC that's clearly aimed at getting work done, not fragging enemies. You get an Intel Core Ultra 7 355, 16GB of DDR5, a 512GB SSD, and a genuinely nice 120Hz IPS display with 400 nits of brightness and full sRGB coverage. At 1.63kg, it's easy enough to toss in a bag.

Our database puts this thing right where you'd expect: solid for business, entertainment, and student life, all hovering around 60 out of 100. Gaming? An 18.2. That integrated Intel graphics will open Minesweeper with confidence and not much else. This is a productivity machine with a touchscreen and a backlit keyboard, not a sleeper gaming rig.

Common Questions

Q: Can this laptop handle gaming?

No. The integrated Intel graphics score 18.2 out of 100 for gaming in our database, which puts it near the bottom. Stick to cloud gaming or very light indie titles.

Q: Is the display good for photo editing?

Yes. The 15.3-inch IPS panel covers 100% sRGB and hits 400 nits of brightness, ranking in the top quarter of laptop screens we've tested. Colors will look accurate for most creative work.

Q: How is the battery life?

The 60Wh battery is decent for a laptop this size, though we don't have benchmark data to give you exact hours. Expect a full workday of light use, but heavy multitasking will drain it faster.

Who Should Skip This

Skip this if you need any real graphics power. The integrated GPU scores 18.2 for gaming, which is one of the worst results in our database. Also skip it if you rely on multiple external monitors, since the single USB-C port and HDMI 1.4 with 4K 30Hz cap will frustrate you. And if you're on a tight budget, that $1,400 price tag buys more raw performance elsewhere.

Verdict

Buy this if you want a lightweight Windows laptop with a genuinely great screen for work, school, or streaming. The Core Ultra 7 handles productivity loads without breaking a sweat, and the 120Hz panel makes everything feel snappy. Just don't expect to play anything more demanding than Solitaire, and know that you're paying a premium for the Copilot+ branding. It's a solid machine for the right person, but that person is not a gamer or a power user.

Usage Scores

Overall (58.6)AI/LLM (24.7)Gaming (18.1)Portability (60.8)Creator (29.4)Student (67.8)Business (61.7)Developer (60.7)Entertainment (62.2)
  • Overall58.6
  • AI/LLM24.7
  • Gaming18.1
  • Portability60.8
  • Creator29.4
  • Student67.8
  • Business61.7
  • Developer60.7
  • Entertainment62.2

Other Configurations4

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