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Xiaomi 14 Ultra
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Xiaomi 14 Ultra Battery test

OTHER AVAILABLE TESTS FOR THIS DEVICE

We put the Xiaomi 14 Ultra through our rigorous DXOMARK Battery test suite to measure its performance in autonomy, charging and efficiency. In these test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key specifications:

  • Battery capacity: 5000 mAh
  • 90W charger (not included)
  • 6.73-inch, 1440 x 3200, 120 Hz, OLED display
  • Qualcomm Snapdragon 8 Gen3 (4 nm)
  • Tested ROM / RAM combination: 512 GB + 16 GB

Scoring

Sub-scores and attributes included in the calculations of the global score.

Xiaomi 14 Ultra
Xiaomi 14 Ultra
123
battery
115
Autonomy
109

221

120

195

124

198

139
Charging
135

224

144

212

141

205

105

194

Key performances

Charging Time
2 days 5h
Battery life
Charging Time
0h35
80% Charging time
Charging Time
1h04
Full charging time
Quick Boost
5h58 autonomy
after 5-minute charge

Pros

  • Efficient and fast wireless charging

Cons

  • Very high discharge currents when browsing social network applications  when on the go

The Xiaomi 14 Ultra’s global battery performance rated above average in our database, but its results in autonomy, charging, and efficiency were behind those achieved by its predecessor.

When used moderately, the Xiaomi 14 Ultra lasted more than two days, which is below average in our database. However, the device had some good autonomy results in several on-the-go use cases, such as calling and navigation, while other use cases showed an average performance.

The Xiaomi 14 Ultra’s strongest results were in the charging experience. Using a wireless charge took only 59 minutes, which is among the best showings in our  database. A quick 5-minute charging boost helped the device regain an average of  nearly 6 hours of autonomy, which didn’t quite match that of the 13 Ultra, but was also better than some competitors.

The device’s charge efficiency registered above average, especially for wireless charging. The discharge currents were slightly above average except for gaming, video streaming in 4G, and calling in 3G.

Compared with other Ultra-premium devices ($800+), the Xiaomi 14 Ultra’s battery performance was above average, thanks to a good charging experience.

Test Summary

About DXOMARK Battery tests: For scoring and analysis in our smartphone battery reviews, DXOMARK engineers perform a variety of objective tests over a week-long period both indoors and outdoors. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)

The following section gathers key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Detailed performance evaluations under the form of reports are available upon request. Do not hesitate to contact us.

Battery Charger Wireless Display Processor
Xiaomi 14 Ultra 5000mAh 90W
(not included)
80W AMOLED
1440 x 3200
Qualcomm Snapdragon 8GEN3
Xiaomi 13 Ultra 5000mAh 90W
(included)
50W OLED
1440 x 3200
Qualcomm Snapdragon 8 Gen 2
Samsung Galaxy S24+ (Exynos) 4900mAh 45W
(not included)
15W Dynamic AMOLED 2X
1440 x 3120
Samsung Exynos 2400
Samsung Galaxy S24 Ultra 5000mAh 45W
(not included)
15W Dynamic AMOLED 2X
1440 x 3120
Qualcomm Snapdragon 8 Gen 3

Autonomy

115

Xiaomi 14 Ultra

195

Honor X7b
How Autonomy score is composed

Autonomy score is composed of three performance sub-scores: Home / Office, On the go, and Calibrated use cases. Each sub-score comprises the results of a comprehensive range of tests for measuring autonomy in all kinds of real-life scenarios.

Light Usage
74h
Light Usage
Active: 2h30/day
Moderate Usage
53h
Moderate Usage
Active: 4h/day
Intense Usage
34h
Intense Usage
Active: 7h/day

Home/Office

109

Xiaomi 14 Ultra

221

Honor X7b

A robot housed in a Faraday cage performs a set of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, video streaming, etc. — 4 hours of active use over the course of a 16-hour period, plus 8 hours of “sleep.” The robot repeats this set of actions every day until the device runs out of power.

Typical Usage Scenario discharge curves

On the go

120

Xiaomi 14 Ultra

195

Samsung Galaxy M51

Using a smartphone on the go takes a toll on autonomy because of extra “hidden” demands, such as the continuous signaling associated with cellphone network selection, for example. DXOMARK Battery experts take the phone outdoors and perform a precisely defined set of activities while following the same three-hour travel itinerary (walking, taking the bus, the subway…) for each device

Autonomy for on the go use cases (full charge)

Calibrated

124

Xiaomi 14 Ultra

198

Samsung Galaxy M51

For this series of tests, the smartphone returns to the Faraday cage and our robots repeatedly perform actions linked to one specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have expended at least 5% of their battery power.

Autonomy for calibrated use cases (full charge)

Charging

139

Xiaomi 14 Ultra

218

Realme GT Neo 5 (240W)
How Charging score is composed

Charging is fully part of the overall battery experience. In some situations where autonomy is at a minimum, knowing how fast you can charge becomes a concern. The DXOMARK Battery charging score is composed of two sub-scores, (1) Full charge and (2) Quick boost.

Wired
Wired
71%
in 30 min
0h35
0 - 80%
1h04
Full charge
Wireless
Wireless
59%
in 30 min
0h43
0 - 80%
0h59
Full charge

Full charge

135

Xiaomi 14 Ultra

224

Realme GT Neo 5 (240W)

Full charge tests assess the reliability of the battery power gauge; measure how long and how much power the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the UI, and until an actual full charge.

Power consumption and battery level during full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Power consumption and battery level during wireless full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Time to full charge
Time to full charge

Quick boost

144

Xiaomi 14 Ultra

212

Realme GT Neo 5 (240W)

With the phone at different charge levels (20%, 40%, 60%, 80%), Quick boost tests measure the amount of charge the battery receives after being plugged in for 5 minutes. The chart here compares the average autonomy gain from a quick 5-minute charge.

Average autonomy gain for a 5 minute charge (wired)

Efficiency

116

Xiaomi 14 Ultra

154

Oppo Reno6 5G
How Efficiency score is composed

The DXOMARK power efficiency score consists of two sub-scores, Charge up and Discharge rate, both of which combine data obtained during robot-based typical usage scenario, calibrated tests and charging evaluation, taking into consideration the device’s battery capacity. DXOMARK calculate the annual power consumption of the product, shown on below graph, which is representative of the overall efficiency during a charge and when in use.

Annual Consumption Xiaomi 14 Ultra
4.9 kWh
Efficient
Good
Bad
Inefficient

Charge up

141

Xiaomi 14 Ultra

205

Nubia RedMagic 7 Pro

The charge up sub-score is a combination of four factors: the overall efficiency of a full charge, related to how much energy you need to fill up the battery compared to the energy that the battery can provide; the efficiency of the travel adapter when it comes to transferring power from an outlet to your phone; the residual consumption when your phone is fully charged and still plugged into the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The chart here below shows the overall efficiency of a full charge in %.

Overall charge efficiency

Discharge

105

Xiaomi 14 Ultra

194

Apple iPhone 14 Pro

The discharge subscore rates the speed of a battery’s discharge during a test, which is independent of the battery’s capacity. It is the ratio of a battery’s capacity divided by its autonomy. A small-capacity battery could have the same autonomy as a large-capacity battery, indicating that the device is well-optimized, with a low discharge rate.

Average discharge current

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