Side by side comparison and review of Lenovo ThinkPad X1 Carbon Gen 10 (21CB) and Lenovo IdeaPad S145-15IGM (81MX). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo ThinkPad X1 Carbon Gen 10 (21CB) based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
impressive battery life
robust security features
high-resolution display
powerful processor performance
higher price point
limited port variety
no dedicated GPU
average speaker quality
Advantages and disadvantages of Lenovo IdeaPad S145-15IGM (81MX) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
solid build quality
decent processor performance
sufficient connectivity options
average display quality
limited storage capacity
no backlit keyboard
mediocre battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.56 cm x 22.25 cm x 1.536 cm | 36.22 cm x 25.15 cm x 1.99 cm |
| Weight | 1.12 kg | 1.85 kg |
| Case Material | Aluminium (bottom), carbon fibre (top) | Polycarbonate ABS |
| Colour | Deep black weave | Granite black IMR |
| DISPLAY | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Screen Size (Type) | 14" OLED | 15.6" - TN |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 2880 x 1800 (2.8K) | 1366 x 768 (HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 400 cd/m² | 220 cd/m² |
| Colour Gamut | 100% DCI-P3 | - |
| Features | Anti-glare, anti-reflective, anti-smudge, 170° viewing angle, Eyesafe technology, HDR 500 True Black | Anti-glare |
| PROCESSOR | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | Intel Pentium Silver N5000 / 1.1 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 2.7 GHz |
| Number of Cores | 10-core | Quad-Core |
| Cache | 12 MB | 4 MB |
| 64-bit Computing | - | Yes |
| Platform Technology | Intel Evo | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| RAM | 16 GB (provided memory is soldered) | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | - | 8 GB |
| RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
| Speed | 5200 MHz | 2400 MHz |
| Rated Speed | 5200 MHz | 2400 MHz |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance | 1 TB HDD SATA 6Gb/s / 5400 rpm |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel UHD Graphics 605 |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | Yes |
| Resolution | - | 0.3 Megapixel |
| Camera Features | Privacy shutter, IR camera, fixed focus, MIPI, Computer Vision | - |
| Sound | Two tweeters, two woofers, quad array microphone | Stereo speakers, microphone |
| Codec | Realtek ALC3306 | - |
| Compliant Standards | High Definition Audio, Dolby Atmos, Dolby Voice | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Wireless | NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 211 | M.2 Card |
| Features | Dual stream (2x2) | Single stream (1x1) |
| WWAN |
|---|
| Generation | 4G upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 30 Wh |
| Battery Life | Up to 24.9 hours | Up to 5.5 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt |
| INPUT | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
USB 2.0 2 x USB 3.1 Gen 1 HDMI Headphone/microphone combo jack |
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 10 Home in S mode - English |
|---|---|---|
| Software Included | Glance by Mirametrix, Intel Connectivity Performance Suite | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) | Lenovo IdeaPad S145-15IGM (81MX) |
|---|
| Included Accessories | USB-C slim power adapter | Power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington nano security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0 | Administrator password, hard drive password, power-on password |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified | RoHS, Energy-Related Products (ErP) Lot 3 |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 5 °C | - |
| Humidity Range Operating | 8 - 95% | - |
| Manufacturer Warranty | Base warranty - 3 years - pick-up and return Limited warranty - battery - 1 year Extended warranty - 3 years - on-site |
Limited warranty - 1 year - pick-up and return |
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