Lenovo ThinkPad X12 Detachable Gen 1 vs. Dell Latitude 7400: Which is better?

Here is a side by side comparison between Lenovo ThinkPad X12 Detachable Gen 1 and Dell Latitude 7400 specs including CPU, RAM, storage, battery, display, and more.

Lenovo ThinkPad X12 Detachable Gen 1 Pros

Reasons that Lenovo ThinkPad X12 Detachable Gen 1 is better than Dell Latitude 7400.

Newer manufacturing

2021 vs. 2019

Slightly faster CPU performance

Intel Core i7-1180G7 inside Lenovo ThinkPad X12 Detachable Gen 1 has a 6% better multi-core CPU performance score than the Intel Core i7-8665U inside Dell Latitude 7400.

Geekbench 5 multi-core score
Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i7-1180G7
4,474
Dell Latitude 7400 - Intel Core i7-8665U
4,209
Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i5-1140G7
4,085
Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i5-1130G7
4,079
Dell Latitude 7400 - Intel Core i5-8365U
3,442
Dell Latitude 7400 - Intel Core i5-8265U
2,132
Supports faster memory

Lenovo ThinkPad X12 Detachable Gen 1 supports a faster memory speed than the Dell Latitude 7400. It supports up to 4267MHz versus 2400MHz of system memory on the Dell Latitude 7400.

Memory type and speed
Lenovo ThinkPad X12 Detachable Gen 1 - LPDDR4X
4,267 MHz
Dell Latitude 7400 - DDR4
2,400 MHz
About 39% lighter

Lenovo ThinkPad X12 Detachable Gen 1 weighed 1.85 pounds, 39% lighter than the 2.99 pounds Dell Latitude 7400.

WeightLenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Pound
1.85 lbs.
2.99 lbs.
Kilogram
0.84 kg
1.36 kg

Dell Latitude 7400 Pros

Reasons that Dell Latitude 7400 is better than Lenovo ThinkPad X12 Detachable Gen 1.

Supports larger memory

Dell Latitude 7400 supports a larger memory capacity than the Lenovo ThinkPad X12 Detachable Gen 1. It supports up to 32GB versus 16GB of system memory on the Lenovo ThinkPad X12 Detachable Gen 1.

Max system memory size
Dell Latitude 7400
32 GB
Lenovo ThinkPad X12 Detachable Gen 1
16 GB
Upgradable memory

Dell Latitude 7400 comes with two SODIMM slots that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the Lenovo ThinkPad X12 Detachable Gen 1 since it has onboard memory.

MemoryLenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Slots
Onboard
x2
TypeLPDDR4XDDR4
13% larger display

Dell Latitude 7400 has a 14-inch screen size 13% larger than the 12.3-inch Lenovo ThinkPad X12 Detachable Gen 1.

Display size
Dell Latitude 7400
14-inch
Lenovo ThinkPad X12 Detachable Gen 1
12.3-inch

Prices

Here are the latest price updates and offers for both devices.

Lenovo ThinkPad X12 Detachable Gen 1 Price
ThinkPad X12 Tablet Case 4X41A08251, Cover, Lenovo, W126087812 (4X41A08251, Cover, Lenovo, ThinkPad X12 Detachable, 30.5 cm (12), 175 g)
ThinkPad X12 Tablet Case 4X41A08251, Cover, Lenovo, W126087812 (4X41A08251, Cover, Lenovo, ThinkPad X12 Detachable, 30.5 cm (12), 175 g)
By Lenovo
$33.29
$45.31 27% OFF
Lenovo ThinkPad X13 Yoga Gen 2 13.3" WUXGA 2-in-1 Touchscreen (Intel 4-Core i5-1145G7, 16GB RAM, 512GB SSD) Business Laptop, Thunderbolt 4, Backlit, Fingerprint, 3-Yr Warranty, IST Cable, Win 11 Pro
Lenovo ThinkPad X13 Yoga Gen 2 13.3" WUXGA 2-in-1 Touchscreen (Intel 4-Core i5-1145G7, 16GB RAM, 512GB SSD) Business Laptop, Thunderbolt 4, Backlit, Fingerprint, 3-Yr Warranty, IST Cable, Win 11 Pro
By Lenovo
$899.98
5M11A36977 12.3" FHD+ 1920×1280 eDP 30 Pins Connector LCD Touch Screen with Bezel Frame Assembly for Thinkpad X12 Detachable Gen 1 Type 20UW 20UV
5M11A36977 12.3" FHD+ 1920×1280 eDP 30 Pins Connector LCD Touch Screen with Bezel Frame Assembly for Thinkpad X12 Detachable Gen 1 Type 20UW 20UV
By For Lenovo
$219.99
Dell Latitude 7400 Price
Dell Latitude 7400 Laptop, 14.0 inches FHD (1920 x 1080) Touchscreen, Intel Core 8th Gen i7-8665U, 16GB RAM, 256GB SSD, Windows 11 (Renewed)
Dell Latitude 7400 Laptop, 14.0 inches FHD (1920 x 1080) Touchscreen, Intel Core 8th Gen i7-8665U, 16GB RAM, 256GB SSD, Windows 11 (Renewed)
By Dell
$298.00
Dell Latitude 7400 Laptop 14 Intel Core i7 8th Gen i7-8665U Dual Core 512GB SSD 16GB 1920x1080 FHD Windows 10 Pro (Renewed)
Dell Latitude 7400 Laptop 14 Intel Core i7 8th Gen i7-8665U Dual Core 512GB SSD 16GB 1920x1080 FHD Windows 10 Pro (Renewed)
By Dell
$241.00
$268.35 10% OFF
Dell Latitude 7400 7000 Series 14-inch Core i5-8365U 16GB RAM 256GB PCIe SSD FHD 1080P FPR + IR Camera Windows 10 Professional (Renewed)
Dell Latitude 7400 7000 Series 14-inch Core i5-8365U 16GB RAM 256GB PCIe SSD FHD 1080P FPR + IR Camera Windows 10 Professional (Renewed)
By Dell
$179.00
$193.03 7% OFF

Availability

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Released20212019
Release Date
  • Announced on January 11, 2021 (CES 2021)
  • Available starting January 2021
-
PricingStarting at $1,149-
Generations-

Exterior

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Dimensions
  • 11.15” x 8.01” x 0.35” (283.3 x 203.5 x 8.8 mm)
    Tablet Only
  • 11.15” x 8.01” x 0.57” (283.3 x 203.5 x 14.5 mm)
    With Keyboard
12.65” x 8.42” x 0.70 - 0.75” (321.35mm x 214.08mm x 17.82 - 18.96mm)”
Weight
  • Starting at 1.85 lbs (840 g)
    Tablet Only
  • Starting at 2.65 lbs (1.2 kg)
    With Keyboard
2.99 lb (1.36kg)
Colors
Black
  • CNC machined aluminum in platinum silver
  • Carbon fiber in black
Keyboard and Trackpad
  • Detachable Keyboard:
    • Backlit with white LED lighting keyboard.
  • Trackpad + TrackPoint® pointing device.
  • Keyboard
    • Full size, backlit chiclet keyboard.
  • Touchpad
    • Size: 3.91” x 2.08” (99.5mm x 53mm)
    • Supports Microsoft Precision multi-touch gesture.
    • Have dedicated left and right-click buttons.

Display

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Size12.3 Inches14 Inches
Info12.3" FHD+
1920 x 1280 3:2 IPS Anti-Reflective Anti-Smudge 400 nits Corning Gorilla® Glass 5
  • 14” HD
    WXGA (1366x768), 220 nits, anti-glare, non-touch display.
  • 14” FHD
    (1920 x 1080), 300 nits, anti-glare, non-touch display
  • 14” FHD
    (1920 x 1080), 300 nits, anti-glare, non-touch display with Dynamic Privacy Dell SafeScreen
  • 14” FHD Touch
    (1920 x 1080), 255 nits, anti-glare, touch display

Ports

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
  • 1 x Thunderbolt™ 4
    Supports USB 4, Power Delivery, and DisplayPort.
  • 1 x USB-C
    Supports USB 3.2 Gen 2, Power Delivery, and DisplayPort.
  • 1 x Headphone / mic combo
  • 1 x Optional Nano SIM slot
  • 1 x Kensington lock slot
Dell Latitude 7400 Ports
Image Source: Dell
Left (5)
  • 1 x power port
  • 1 x Thunderbolt 3
    40 Gpbs, USB 3.1 Gen 2 (10 Gbps), DisplayPort 1.2, Power Delivery
  • 1 x HDMI
    v1.4
  • 1 x USB-A
    USB 3.1 Gen 1 (5 Gbps)
  • 1 x Smart Card Reader
    Optional
Right (5)
  • 1 x headphone jack
    Headphone/Microphone
  • 1 x microSD card slot
  • 1 x nanoSIM card slot
    Optional
  • 1 x USB-A
    USB 3.1 Gen 1 (5 Gbps), PowerShare
  • 1 x lock slot

Internal Specs

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Processor
  1. 11th Gen Intel® Core™ i5-1130G7
    4 cores, 8 threads, 1.80 → 4.00 GHz, 8MB SmartCache, 15W
  2. 11th Gen Intel® Core™ i5-1140G7 with vPro™
    4 cores, 8 threads, 1.80 → 4.20 GHz, 8MB SmartCache, 15W
  3. 11th Gen Intel® Core™ i7-1180G7 with vPro™
    4 cores, 8 threads, 2.20 → 4.60 GHz, 12MB SmartCache, 15W
  1. 8th Gen Intel® Core™ i5-8265U
    4 cores, 8 threads, 1.60 → 3.90 GHz, 6MB SmartCache, 15W
  2. 8th Gen Intel® Core™ i5-8365U
    4 cores, 8 threads, 1.60 → 4.10 GHz, 6MB SmartCache, 15W
  3. 8th Gen Intel® Core™ i7-8665U
    4 cores, 8 threads, 1.90 → 4.80 GHz, 8MB SmartCache, 15W
Integrated Graphics
  1. 11th Gen Intel® Core™ i5-1130G7
    Intel® Iris® Xe Graphics
    80 Execution Units, 400 → 1100 MHz
  2. 11th Gen Intel® Core™ i5-1140G7 with vPro™
    Intel® Iris® Xe Graphics
    80 Execution Units, 400 → 1100 MHz
  3. 11th Gen Intel® Core™ i7-1180G7 with vPro™
    Intel® Iris® Xe Graphics
    96 Execution Units, 400 → 1100 MHz
  1. 8th Gen Intel® Core™ i5-8265U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1100 MHz
  2. 8th Gen Intel® Core™ i5-8365U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1100 MHz
  3. 8th Gen Intel® Core™ i7-8665U
    Intel® UHD Graphics 620
    24 Execution Units, 300 → 1150 MHz
Memory
8GB 16GB
4267 MHz Dual-channel LPDDR4x Memory.
  • Memory Info
    • 2 x SoDIMM slots
    • Type: Dual-Channel DDR4
    • Speed: 2400 MHz
  • Memory Configurations
    • Minimum Memory: 4GB
    • Maximum Memory: 32GB
Storage
256 GB 512 GB 1 TB
PCIe SSD
  • Hard Drive Slot
    • 1 x M.2 2280 slot
  • Hard Drive Configurations
    • Up to 1TB PCIe SSD

Connectivity

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Wi-FiIntel® Wi-Fi 6™ AX201 802.11AX (2 x 2)
Up to 2400 Mbps, Dual band 2.4 GHz/5 GHz, 802.11 a/b/g/n/ac/ax.
  • Qualcomm QCA61x4A Wi-Fi 5 802.11ac
    Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac)
  • Intel® Wi-Fi 5 Wireless-AC 9560 2x2 802.11ac vPro
    Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac)
  • Intel® Wi-Fi 6 AX200 2x2 802.11ax 160MHz
    Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac), WiFi-6 (802.11ax)
BluetoothBluetooth 5.1
  • Bluetooth 5.0 
    With Intel® Wi-Fi 5 Wireless-AC 9560 and Intel® Wi-Fi 6 AX200 models
  • Bluetooth 4.2
    With Qualcomm QCA61x4A models
MoreOptional WWAN: 4x4 MIMO 4G (LTE CAT9)Optional Mobile Broadband Qualcomm Snapdragon X20 Global Gigabit LTE (Optional)

Battery

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Size42 Wh
  • 32 Wh (3-cell Polymer, ExpressCharge capable battery)
  • 60 Wh (4-cell Polymer, ExpressCharge capable battery)
  • 60 Wh (4-cell Polymer, Long Life Battery)
Battery LifeUp to 10.18 hours
Based on MobileMark® 2018 battery-life benchmark test
-
Power Supply65 W USB (Type-C) power adapter
Supports Rapid Charge.
  • 65W 7.4 mm Barrel Adapter
  • 90W 7.4 mm Barrel Adapter
  • 65W adapter, Type-C
  • 90W adapter, Type-C

Software

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
OS
  • Windows 10 Home 64-bit
  • Windows 10 Pro 64-bit
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
Built-in Apps
Lenovo Vantage
  • Microsoft Office 30-days trial
  • McAfee® Small Business Security 30 Day Free Trial

Camera & Audio

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
Camera
  • Front-facing camera with ThinkShutter privacy shutter
    720p (1280 x 720 HD) camera.
  • Hybrid Infrared (IR)
  • 8MP rear-facing camera
  • Front-facing camera
    Top-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.
  • Optinal Infrared camera
    For Windows Hello Facial Recognition.
Audio
  • Dolby® Premium
  • Dual-array mics
  • Realtek ALC3254 with Waves MaxxAudio Pro
  • 2 x 2W = 4W stereo speakers
  • Dual array microphones

Misc

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
InkingSupports Active Pen:
  • Lenovo Precision Pen (optional included)
  • Lenovo Digital Pen
-
Sensors-
  • Ambient Light Sensor (optional)
  • IR Camera (optional)
  • Windows Hello compliant fingerprint reader in the power button
Security
  • Discrete Trusted Platform Module (dTPM) 2.0
  • Windows Hello & IR camera for facial recognition login
  • The fingerprint reader on the optional keyboard
  • Webcam privacy cover
  • Kensington lock slot
  • Security lock slot
  • Windows Hello Facial Recognition (optional)
  • Windows Hello compliant fingerprint reader in the power button
  • Camera Shutter
  • Dynamic Privacy Dell SafeScreen
In the box
  • ThinkPad X12 Detachable
  • 65W AC Adapter (Supports Rapid Charge)
  • 4 Cell 42Whr Internal Battery
  • Keyboard (Select Models)
  • Pen (Select Models)
  • Quick Start Guide
-
Warranty-3 Years Hardware Warranty with Onsite In-Home Service after Remote Diagnosis

Key Features

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400
At Glance
Released in
2021
3:2 FHD+
12.3”
1280p 60Hz
Weight
1.85 lb
0.84 kg
Up to
Intel Core i7-1180G7
4C/8T, 2.20 → 4.60 GHz
Geekbench 5
1,364
Single Core
Geekbench 5
4,474
Multi-Core
With integrated
Intel® Iris® Xe Graphics
96 Execution Units, 400 → 1100 MHz
Configurable up to
16GB
4267 MHz LPDDR4X
Released in
2019
16:9 FHD
14”
1080p 60Hz
Weight
2.99 lb
1.36 kg
Up to
Intel Core i7-8665U
4C/8T, 1.90 → 4.80 GHz
Geekbench 5
1,134
Single Core
Geekbench 5
4,209
Multi-Core
With integrated
Intel® UHD Graphics 620
24 Execution Units, 300 → 1150 MHz
Upgradable up to
32GB
2400 MHz DDR4
Dell Latitude 7400 Ports

Comparison Summary

Lenovo ThinkPad X12 Detachable Gen 1 vs. Dell Latitude 7400

Lenovo has released the ThinkPad X12 Detachable Gen 1, a 12.3-inch machine, in 2021. It is powered by up to a quad-core Intel Core i7-1180G7 with a boost clock speed up to 4.60 GHz. The laptop has an integrated graphics option up to Intel® Iris® Xe Graphics (96 Execution Units, 400 → 1100 MHz).

On the other hand, we have the 14-inch Latitude 7400 was introduced by Dell about two years earlier in 2019. It comes with up to a quad-core Intel Core i7-8665U with a boost clock speed up to 4.80 GHz. It has an integrated graphics option up to Intel® UHD Graphics 620 (24 Execution Units, 300 → 1150 MHz).

Geekbench 5 Single Core

Lenovo ThinkPad X12 Detachable Gen 11
11th Gen Intel® Core™ i5-1130G71,23890.76%
2
11th Gen Intel® Core™ i5-1140G7 with vPro™1,21789.22%
3
11th Gen Intel® Core™ i7-1180G7 with vPro™1,364100.00%
Dell Latitude 74001
8th Gen Intel® Core™ i5-8265U64547.29%
2
8th Gen Intel® Core™ i5-8365U1,04976.91%
3
8th Gen Intel® Core™ i7-8665U1,13483.14%
01,364

Geekbench 5 Multi Core

Lenovo ThinkPad X12 Detachable Gen 11
11th Gen Intel® Core™ i5-1130G74,07991.17%
2
11th Gen Intel® Core™ i5-1140G7 with vPro™4,08591.31%
3
11th Gen Intel® Core™ i7-1180G7 with vPro™4,474100.00%
Dell Latitude 74001
8th Gen Intel® Core™ i5-8265U2,13247.65%
2
8th Gen Intel® Core™ i5-8365U3,44276.93%
3
8th Gen Intel® Core™ i7-8665U4,20994.08%
04,474

The Lenovo ThinkPad X12 Detachable Gen 1 has a 12.3-inch display which is slightly smaller than the 14-inch Dell Latitude 7400. In addition, The Lenovo ThinkPad X12 Detachable Gen 1 weighs 1.85 lbs. about 61% lighter than the 2.99 lbs. Dell Latitude 7400. Moreover, measured at 11.15” x 8.01” x 0.35”, the Lenovo ThinkPad X12 Detachable Gen 1 is much more portable than the Dell Latitude 7400 at 12.65” x 8.42” x 0.75”.

Lenovo ThinkPad X12 Detachable Gen 1Dell Latitude 7400

Moving over to upgradability, Lenovo claims that the Lenovo ThinkPad X12 Detachable Gen 1 supports up to 16GB 4267 MHz LPDDR4X memory. However, it has an onboard memory module that is not upgradable by the users.

For Dell Latitude 7400, it supports up to 32GB 2400 MHz DDR4 memory that you can upgrade with two memory module slots on the motherboard. It also has a single removable M.2 SSD slot that users can replace or upgrade when needed.

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