Home
Trade-in

Honor 400 Smart vs Xiaomi Redmi 15C 4G

Shop Android Smartphones
  • 24-month warranty
  • Free standard delivery on orders over £50
  • 14-day returns
  • Excellent customer support

Honor 400 Smart

Starting at

£156.00
See options

Xiaomi Redmi 15C 4G

Starting at

£142.00
See options

What's the difference between the Honor 400 Smart and Xiaomi Redmi 15C 4G?

Honor 400 Smart vs Xiaomi Redmi 15C 4G comes down to the chipset, battery and screen size. Refurbished, the Xiaomi Redmi 15C 4G starts at £142, £14 less than the Honor 400 Smart.

Refurbished from

£156£142

Chipset

Qualcomm SM6225 Snapdragon 685 (6 nm)Mediatek Helio G81 Ultra (12 nm)

Battery

6500 mAh6000 mAh

Screen size

6.77 inch6.9 inch

Screen type

TFT LCDIPS LCD

Mobile network

5G4G
  • Chipset: Qualcomm SM6225 Snapdragon 685 (6 nm) on the Honor 400 Smart, Mediatek Helio G81 Ultra (12 nm) on the Xiaomi Redmi 15C 4G.
  • The Honor 400 Smart has a bigger battery: 6500 mAh vs 6000 mAh.
  • Screen size: 6.77 inch on the Honor 400 Smart, 6.9 inch on the Xiaomi Redmi 15C 4G.

Honor 400 Smart vs Xiaomi Redmi 15C 4G specs

The Honor 400 Smart and Xiaomi Redmi 15C 4G both run Android and were released in 2025 but they differ in several ways that suit different users. The Honor 400 Smart offers a larger battery and 5G connectivity making it a good choice if you want longer battery life and faster mobile networks. The Xiaomi Redmi 15C 4G has a bigger screen with an IPS LCD panel a microSDXC slot for expandable storage and a USB-C port only which suits those who prefer more screen space and flexible storage options. Both have the same RAM and front camera resolution so basic performance and selfies will be similar.

Honor 400 Smart vs Xiaomi Redmi 15C 4G price

Colour

  • BlackSold out
  • OrangeSold out

Storage

  • 128GBSold out
  • 128GBSold out

Honor 400 Smart vs Xiaomi Redmi 15C 4G battery life and software updates

Durability considerations include battery capacity network compatibility and software updates. These affect how long you can use the phone each day and how future-proof it is for updates and connectivity.

Battery Capacity

The Honor 400 Smart has a 6500 mAh battery. This higher capacity is suited to users who need longer use between charges. The Xiaomi Redmi 15C 4G has a 6000 mAh battery which still supports extended use but may require charging a bit sooner depending on your usage.

Mobile Network

The Honor 400 Smart supports 5G networks which is ideal if you want access to faster mobile internet where 5G is available. The Xiaomi Redmi 15C 4G supports 4G networks suitable for everyday use in areas where 4G is reliable.

Battery

6500 mAh6000 mAh

Foldable

NoNo

Year of release

20252025

Honor 400 Smart vs Xiaomi Redmi 15C 4G performance

Performance depends on the chipset RAM and storage. Both phones have the same RAM and storage capacity but the chipsets differ which affects overall responsiveness and efficiency.

Processor Technology

The Honor 400 Smart runs on a Qualcomm SM6225 Snapdragon 685 built on a 6 nm process. This chip suits users who want energy-efficient performance and smooth everyday app use. The Xiaomi Redmi 15C 4G uses a Mediatek Helio G81 Ultra with a 12 nm process which is effective for general tasks and balanced performance.

Memory and Storage

Both devices have 4 GB of RAM and 128 GB of storage. This setup supports multitasking and storing apps photos and files for everyday use without needing immediate upgrades.

Chipset

Qualcomm SM6225 Snapdragon 685 (6 nm)Mediatek Helio G81 Ultra (12 nm)

RAM

4 GB4 GB

Honor 400 Smart vs Xiaomi Redmi 15C 4G screen

Screen size resolution and type influence how you experience media and daily use. Both devices offer large displays but with slight differences in size and panel technology.

Screen Size and Resolution

The Xiaomi Redmi 15C 4G has a 6.9 inch screen with 720 by 1600 resolution providing a more spacious view for watching videos and browsing. The Honor 400 Smart has a slightly smaller 6.77 inch screen with 720 by 1610 resolution which still delivers a clear picture and is good for one-handed use.

Screen Type

The Honor 400 Smart uses a TFT LCD screen which generally offers good brightness and colour accuracy for everyday tasks. The Xiaomi Redmi 15C 4G uses an IPS LCD panel known for wider viewing angles and consistent colours which can enhance media viewing and group sharing.

Refresh rate

120 HzN/A

Resolution

720 x 1610720x1600

Screen size

6.77 inch6.9 inch

Screen type

TFT LCDIPS LCD

Honor 400 Smart vs Xiaomi Redmi 15C 4G camera

Camera type

N/ADouble (2x)

Front camera

8 megapixels8 megapixels

Main camera

108 megapixelsN/A

Honor 400 Smart vs Xiaomi Redmi 15C 4G size and design

Other practical differences include physical dimensions connectivity ports and storage expandability. These affect comfort accessory compatibility and how you manage files.

Connectivity Ports

The Honor 400 Smart includes both a USB-C port and a 3.5mm headphone jack. This suits users who prefer wired headphones without needing an adapter. The Xiaomi Redmi 15C 4G offers a USB-C port only which may require wireless headphones or an adapter for wired audio.

Expandable Storage

The Xiaomi Redmi 15C 4G supports microSDXC cards allowing you to increase storage beyond the built-in 128 GB. This is ideal if you want extra space for photos videos or apps. The Honor 400 Smart does not have this feature.

Size and Weight

The Xiaomi Redmi 15C 4G is larger at 171.6 mm tall and 79.5 mm wide and weighs 211 g. The Honor 400 Smart is a bit smaller at 166.9 mm tall and 76.8 mm wide and weighs 208 g. The choice here depends on whether you prefer a bigger screen or a slightly more compact and lighter phone.

SIM and Carrier Compatibility

Both devices offer dual physical SIM slots and come unlocked giving flexibility to use different carriers or plans.

Carrier compatibility

UnlockedUnlocked

Connector

USB-C + Jack 3.5mmUSB-C

Depth

8.4 mm8 mm

Height

166.9 mm171.6 mm

Mobile network

5G4G

SD card slot

NomicroSDXC

SIM card

Dual Physical SIMDual Physical SIM

Weight

208 g211 g

Width

76.8 mm79.5 mm

Honor 400 Smart or Xiaomi Redmi 15C 4G: which should you buy?

Buy the Honor 400 Smart if

  • you want a bigger battery (6500 mAh vs 6000 mAh)
  • you want 5G
  • you want a headphone jack

Buy the Xiaomi Redmi 15C 4G if

  • you want to spend less: it starts at £142, £14 less than the Honor 400 Smart
  • you want a memory card slot

Honor 400 Smart vs Xiaomi Redmi 15C 4G FAQs

Honor 400 Smart vs Xiaomi Redmi 15C 4G comes down to the chipset, battery and screen size. Chipset: Qualcomm SM6225 Snapdragon 685 (6 nm) on the Honor 400 Smart, Mediatek Helio G81 Ultra (12 nm) on the Xiaomi Redmi 15C 4G. The Honor 400 Smart has a bigger battery: 6500 mAh vs 6000 mAh.

The Xiaomi Redmi 15C 4G is cheaper refurbished, from £142 compared with £156 for the Honor 400 Smart.

The Honor 400 Smart has a bigger battery: 6500 mAh vs 6000 mAh.

Both come in 128GB refurbished.

Add device
Add device
Add device
Add device