The OnePlus 9 Pro arrived on the market in March 2021. Coming with many nice features, including a Hasselblad camera module, it fits in our Ultra-Premium ($800 and higher) segment. Let’s see how it did in our Battery protocol tests.
Key specifications:
- Battery capacity: 4500 mAh
- 65W charger, 50W wireless
- 6.7-inch, 1440 x 3216, 120 Hz AMOLED display
- Qualcomm Snapdragon 888 5G (5 nm) chipset
- Tested ROM / RAM combination: 256 GB + 12 GB
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. This article highlights the most important results of our testing. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)
Test summary
Scoring
Sub-scores and attributes included in the calculations of the global score.
OnePlus 9 Pro
104
battery
75
Honor X7a
Best: Honor X7a (213)
103
Samsung Galaxy M51
Best: Samsung Galaxy M51 (195)
96
Samsung Galaxy M51
Best: Samsung Galaxy M51 (198)
161
Realme GT Neo 5 (240W)
Best: Realme GT Neo 5 (240W) (224)
135
Realme GT Neo 5 (240W)
Best: Realme GT Neo 5 (240W) (212)
145
Nubia RedMagic 7 Pro
Best: Nubia RedMagic 7 Pro (205)
79
Apple iPhone 14 Pro
Best: Apple iPhone 14 Pro (194)
Key performances
These key points are derived from the lab measurements during testing and do not figure into the overall score. The lab measurements, however, are used for the overall score.
5h07 autonomy
after 5-minute charge
Please be aware that beyond this point, we have not modified the initial test results. While data and products remain fully comparable, you might encounter mentions and references to the previous scores.
Position in Global Ranking

114
th
3. Realme GT Neo 5 (240W)
147
8. Samsung Galaxy S23 Ultra (Snapdragon)
142
18. Apple iPhone 13 Pro Max
136
18. Xiaomi Redmi Note 12 Pro 5G
136
28. Samsung Galaxy S23 Plus (Snapdragon)
134
28. Xiaomi Redmi Note 11 Pro 5G
134
31. Apple iPhone 14 Pro Max
133
31. Vivo X60 Pro 5G (Snapdragon)
133
31. Xiaomi Redmi Note 11S 5G
133
37. Xiaomi Redmi Note 12 5G
132
37. Xiaomi Redmi Note 10S
132
44. Oppo Reno6 Pro 5G (Snapdragon)
130
45. Samsung Galaxy A34 5G
129
45. Samsung Galaxy A23 5G
129
45. Xiaomi Redmi Note 12 Pro+ 5G
129
45. Xiaomi Redmi Note 10 Pro
129
61. Samsung Galaxy A13 5G
125
68. Apple iPhone 12 Pro Max
121
70. Xiaomi Redmi Note 10 5G
120
80. Samsung Galaxy A14 5G
117
89. Samsung Galaxy Z Fold5
114
92. Samsung Galaxy A54 5G
113
99. Motorola Moto G9 Power
111
99. Samsung Galaxy S21 Ultra 5G (Snapdragon)
111
103. Samsung Galaxy Z Flip5
109
103. Samsung Galaxy S23 (Snapdragon)
109
106. Samsung Galaxy S21 5G (Snapdragon)
108
110. Xiaomi Mi 11 Lite 5G
107
111. Samsung Galaxy A52 5G
106
115. Samsung Galaxy S22 Ultra (Snapdragon)
103
120. Samsung Galaxy S21 5G (Exynos)
100
120. Xiaomi Redmi 10 2022
100
125. Apple iPhone 13 mini
99
125. Samsung Galaxy Z Fold4
99
125. Vivo X80 Pro (Snapdragon)
99
130. Motorola Edge 30 Pro
98
130. Samsung Galaxy S22 Ultra (Exynos)
98
134. Samsung Galaxy A33 5G
96
137. Samsung Galaxy Z Flip4
95
137. Samsung Galaxy S22+ (Exynos)
95
137. Samsung Galaxy A53 5G
95
142. Apple iPhone 12 mini
93
142. Samsung Galaxy S21 Ultra 5G (Exynos)
93
145. Samsung Galaxy Z Fold3 5G
92
146. Samsung Galaxy S22 (Snapdragon)
90
151. Apple iPhone SE (2022)
84
152. Samsung Galaxy S21 FE 5G (Snapdragon)
82
156. Samsung Galaxy S22 (Exynos)
75
Position in Ultra-Premium Ranking

27
th
2. Samsung Galaxy S23 Ultra (Snapdragon)
142
6. Apple iPhone 13 Pro Max
136
8. Samsung Galaxy S23 Plus (Snapdragon)
134
9. Apple iPhone 14 Pro Max
133
14. Apple iPhone 12 Pro Max
121
18. Samsung Galaxy Z Fold5
114
20. Samsung Galaxy S21 Ultra 5G (Snapdragon)
111
22. Samsung Galaxy Z Flip5
109
28. Samsung Galaxy S22 Ultra (Snapdragon)
103
32. Samsung Galaxy Z Fold4
99
32. Vivo X80 Pro (Snapdragon)
99
34. Samsung Galaxy S22 Ultra (Exynos)
98
35. Samsung Galaxy Z Flip4
95
35. Samsung Galaxy S22+ (Exynos)
95
38. Samsung Galaxy S21 Ultra 5G (Exynos)
93
39. Samsung Galaxy Z Fold3 5G
92
Pros
- Good charging experience
- Excellent wireless charging performance
Cons
- Very high consumption for 4G music streaming and gaming
- Below-average performance in autonomy tests
OnePlus 9 Pro’s overall score suggests an average performance for a device in its price range; however, it owes a lot to its very fast charging time. Among its segment competitors in this review, it lags considerably behind the Apple iPhone 13 Pro Max in terms of autonomy and efficiency, and a bit behind the Samsung Galaxy S21 Ultra (Snapdragon) in terms of autonomy.
Battery capacity, tested charger, display type and resolution, and processor specifications for all three devices are shown in the table below.
|
OnePlus 9 Pro |
Samsung Galaxy S21 Ultra 5G (Snapdragon) |
Apple iPhone 13 Pro Max |
Battery capacity |
4500 mAh |
5000 mAh |
4352 mAh |
Charger
Wireless |
65W
50W
|
25W (not included)
15W |
20W (not included)
15W
|
Display type |
AMOLED |
AMOLED |
AMOLED |
Display resolution |
1440 x 3216* |
1440 x 3200* |
1284 x 2778 |
Chipset |
Qualcomm Snapdragon 888 5G 5 nm |
Qualcomm Snapdragon 888 5G 5 nm |
Apple A15 Bionic 5 nm |
*Note that while the OnePlus 9 Pro and the Samsung Galaxy S21 Ultra 5G (Snapdragon) are equipped with QHD display screens, their default UI resolution is FHD only (1080 x 2412 for the OnePlus and 1080 x 2400 for the Samsung).
Autonomy (46)
How long a battery charge lasts depends not only on battery capacity but also on other aspects of the phone’s hardware and software. The DXOMARK Battery autonomy score is composed of three performance sub-scores: (1) Stationary, (2) On the go, and (3) 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.
61h
Light Usage
Active: 2h30/day
43h
Moderate Usage
Active: 4h/day
27h
Intense Usage
Active: 7h/day
As of this writing, the OnePlus 9 Pro has the lowest score for Autonomy among all Ultra-Premium devices.
Position in Global Ranking
Battery Life (moderate)

138
th
10. Xiaomi Redmi Note 11S 5G
72h
15. Xiaomi Redmi Note 10 5G
70h
19. Samsung Galaxy A13 5G
69h
21. Apple iPhone 13 Pro Max
68h
22. Xiaomi Redmi Note 10 Pro
67h
23. Samsung Galaxy S23 Ultra (Snapdragon)
67h
24. Xiaomi Redmi Note 12 5G
67h
30. Samsung Galaxy A34 5G
65h
32. Apple iPhone 14 Pro Max
65h
34. Samsung Galaxy A23 5G
64h
39. Motorola Moto G9 Power
64h
42. Xiaomi Redmi Note 12 Pro 5G
62h
43. Samsung Galaxy A14 5G
62h
44. Xiaomi Redmi Note 11 Pro 5G
62h
45. Xiaomi Redmi Note 10S
61h
47. Samsung Galaxy S23 Plus (Snapdragon)
61h
48. Samsung Galaxy A54 5G
60h
71. Samsung Galaxy A52 5G
56h
73. Xiaomi Redmi Note 12 Pro+ 5G
55h
74. Realme GT Neo 5 (240W)
55h
82. Samsung Galaxy Z Fold5
54h
100. Xiaomi Mi 10T Pro 5G
51h
101. Samsung Galaxy S23 (Snapdragon)
51h
102. Vivo X60 Pro 5G (Snapdragon)
51h
108. Samsung Galaxy S21 5G (Snapdragon)
50h
110. Samsung Galaxy A53 5G
49h
115. Apple iPhone 12 Pro Max
49h
116. Samsung Galaxy Z Fold4
49h
117. Samsung Galaxy S21 Ultra 5G (Snapdragon)
48h
119. Oppo Reno6 Pro 5G (Snapdragon)
48h
122. Motorola Edge 30 Pro
47h
123. Samsung Galaxy A33 5G
47h
124. Samsung Galaxy S22 Ultra (Snapdragon)
47h
126. Samsung Galaxy Z Flip5
46h
127. Samsung Galaxy S21 5G (Exynos)
46h
129. Nubia RedMagic 6 Pro
46h
134. Samsung Galaxy S22 Ultra (Exynos)
44h
137. Vivo X80 Pro (Snapdragon)
43h
139. Samsung Galaxy Z Fold3 5G
43h
140. Samsung Galaxy Z Flip4
42h
142. Samsung Galaxy S21 Ultra 5G (Exynos)
41h
144. Apple iPhone 13 mini
41h
145. Apple iPhone 12 mini
40h
147. Samsung Galaxy S22+ (Exynos)
40h
148. Samsung Galaxy S22 (Snapdragon)
39h
151. Samsung Galaxy S21 FE 5G (Snapdragon)
38h
153. Apple iPhone SE (2022)
37h
155. Samsung Galaxy S22 (Exynos)
35h
Position in Ultra-Premium Ranking
Battery Life (moderate)

35
th
3. Apple iPhone 13 Pro Max
68h
4. Samsung Galaxy S23 Ultra (Snapdragon)
67h
6. Apple iPhone 14 Pro Max
65h
9. Samsung Galaxy S23 Plus (Snapdragon)
61h
14. Samsung Galaxy Z Fold5
54h
23. Apple iPhone 12 Pro Max
49h
24. Samsung Galaxy Z Fold4
49h
25. Samsung Galaxy S21 Ultra 5G (Snapdragon)
48h
28. Samsung Galaxy S22 Ultra (Snapdragon)
47h
30. Samsung Galaxy Z Flip5
46h
31. Samsung Galaxy S22 Ultra (Exynos)
44h
34. Vivo X80 Pro (Snapdragon)
43h
36. Samsung Galaxy Z Fold3 5G
43h
37. Samsung Galaxy Z Flip4
42h
39. Samsung Galaxy S21 Ultra 5G (Exynos)
41h
40. Samsung Galaxy S22+ (Exynos)
40h
Stationary
Vivo Y72 5G
Best: Vivo Y72 5G (104)
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.
The OnePlus 9 Pro put in a disappointing performance in our Typical Usage Scenario tests, offering only 44 hours of autonomy. However, the OnePlus lost only 2% of its charge at night; while that puts it behind the iPhone 13 Pro Max (1% lost), it’s better than the S21 Ultra (Snapdragon), which lost on average 3.67% at night.
Typical Usage Scenario discharge curves
On the go
Samsung Galaxy M51
Best: Samsung Galaxy M51 (96)
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 outside and perform a precisely defined set of activities while following the same three-hour travel itinerary for each device.
The OnePlus 9 Pro did better in our on the go tests, but still came in behind the other two devices in all categories except for camera, where it beat the Samsung. Nevertheless, its results are below-average in terms of all Ultra-Premium devices in our database.
Autonomy for on the go use cases (full charge)
Calibrated
Samsung Galaxy M51
Best: Samsung Galaxy M51 (100)
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.
Here again, the OnePlus 9 Pro came in behind its Apple and Samsung competitors, especially when gaming and streaming music via 4G.
Autonomy for calibrated use cases (full charge)
Charging (99)
The DXOMARK Battery charging score is composed of two sub-scores, Full charge and Quick boost. Full charge tests assess the reliability of the battery power gauge; measure how long it takes to charge a battery from zero to 80% capacity and from 80 to 100%; and measure how long and how much power the battery takes to go from an indicated 100% to an actual full charge. 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 OnePlus 9 Pro comes with a 65W charger which allows it to significantly outperform both the Apple iPhone 13 Pro Max and the Samsung Galaxy S21 Ultra (Snapdragon) with their respective 20W and 25W chargers.
Full charge
Black Shark 5 Pro
Best: Black Shark 5 Pro (121)
Power consumption and battery level during full charge
Power consumption and battery level during wireless full charge
The OnePlus 9 Pro takes 53 minutes to fully charge its battery, versus 2 hours 9 minutes for the iPhone 13 Pro Max and 1 hour 27 minutes for the S21 Ultra Snapdragon.
Among the three devices, OnePlus 9 Pro is the fastest for wireless charging, taking 1 hour 10 minutes versus 2 hours 41 minutes for the Apple and 2 hours 27 minutes for the Samsung.
Position in Global Ranking
Charging Time 0-80%

16
th
1. Realme GT Neo 5 (240W)
0h08
21. Oppo Reno6 Pro 5G (Snapdragon)
0h22
28. Xiaomi Redmi Note 12 Pro+ 5G
0h24
29. Vivo X80 Pro (Snapdragon)
0h24
53. Xiaomi Redmi Note 12 Pro 5G
0h33
58. Samsung Galaxy S23 Ultra (Snapdragon)
0h37
59. Samsung Galaxy S22+ (Exynos)
0h37
62. Samsung Galaxy S23 Plus (Snapdragon)
0h37
63. Xiaomi Redmi Note 11 Pro 5G
0h38
66. Samsung Galaxy S22 Ultra (Snapdragon)
0h39
67. Samsung Galaxy S22 Ultra (Exynos)
0h40
68. Vivo X60 Pro 5G (Snapdragon)
0h40
76. Xiaomi Redmi Note 12 5G
0h44
80. Samsung Galaxy S21 Ultra 5G (Snapdragon)
0h46
83. Samsung Galaxy Z Flip5
0h48
84. Samsung Galaxy S21 5G (Exynos)
0h48
85. Samsung Galaxy S21 5G (Snapdragon)
0h49
89. Samsung Galaxy A23 5G
0h49
91. Samsung Galaxy S22 (Snapdragon)
0h50
91. Samsung Galaxy S23 (Snapdragon)
0h50
93. Samsung Galaxy Z Fold5
0h51
94. Samsung Galaxy S22 (Exynos)
0h51
96. Samsung Galaxy A34 5G
0h51
96. Apple iPhone SE (2022)
0h51
98. Samsung Galaxy S21 Ultra 5G (Exynos)
0h51
100. Xiaomi Redmi Note 10
0h52
101. Xiaomi Redmi Note 10S
0h52
103. Samsung Galaxy A54 5G
0h52
105. Samsung Galaxy S21 FE 5G (Snapdragon)
0h53
107. Samsung Galaxy A33 5G
0h54
107. Xiaomi Redmi Note 11S 5G
0h54
109. Xiaomi Redmi Note 10 Pro
0h55
110. Samsung Galaxy Z Fold4
0h56
111. Samsung Galaxy A53 5G
0h57
112. Samsung Galaxy Z Flip4
0h57
113. Apple iPhone 13 mini
0h57
114. Apple iPhone 12 Pro Max
0h57
115. Samsung Galaxy Z Fold3 5G
0h57
121. Apple iPhone 13 Pro Max
1h01
124. Apple iPhone 14 Plus
1h03
130. Apple iPhone 14 Pro Max
1h06
135. Samsung Galaxy A52 5G
1h15
139. Xiaomi Redmi Note 10 5G
1h22
142. Xiaomi Redmi 10 2022
1h25
144. Motorola Moto G62 5G
1h26
145. Samsung Galaxy A14 5G
1h28
146. Samsung Galaxy A13 5G
1h30
153. Motorola Moto G9 Power
1h53
Position in Ultra-Premium Ranking
Charging Time 0-80%

3
rd
8. Vivo X80 Pro (Snapdragon)
0h24
18. Samsung Galaxy S23 Ultra (Snapdragon)
0h37
19. Samsung Galaxy S22+ (Exynos)
0h37
21. Samsung Galaxy S23 Plus (Snapdragon)
0h37
23. Samsung Galaxy S22 Ultra (Snapdragon)
0h39
24. Samsung Galaxy S22 Ultra (Exynos)
0h40
26. Samsung Galaxy S21 Ultra 5G (Snapdragon)
0h46
27. Samsung Galaxy Z Flip5
0h48
29. Samsung Galaxy Z Fold5
0h51
30. Samsung Galaxy S21 Ultra 5G (Exynos)
0h51
32. Samsung Galaxy Z Fold4
0h56
33. Samsung Galaxy Z Flip4
0h57
34. Apple iPhone 12 Pro Max
0h57
35. Samsung Galaxy Z Fold3 5G
0h57
37. Apple iPhone 13 Pro Max
1h01
43. Apple iPhone 14 Pro Max
1h06
Quick boost
Realme GT Neo 3
Best: Realme GT Neo 3 (111)
By plugging in the OnePlus 9 Pro smartphone for 5 minutes, users will gain more than 5 hours of autonomy on average, which is 2 hours more than both the Samsung and Apple devices.
|
| OnePlus 9 Pro | Samsung Galaxy S21 Ultra 5G (Snapdragon) | Apple iPhone 13 Pro Max |
Autonomy boost (hh:mm) | 20% | 5:35 | 3:24 | 3:11 |
40% | 5:07 | 3:22 | 3:18 |
60% | 4:15 | 2:54 | 3:02 |
80% | 2:48 | 2:11 | 1:35 |
Percentage boost | 20% | 18.7 % | 9.2 % | 6.3 % |
40% | 17.2 % | 9.1 % | 6.5 % |
60% | 14.2 % | 7.8 % | 6 % |
80% | 9.4 % | 5.9 % | 3.1 % |
Energy consumed | 20% | 4096 mWh | 2279 mWh | 1621 mWh |
40% | 3764 mWh | 2262 mWh | 1678 mWh |
60% | 3118 mWh | 1950 mWh | 1545 mWh |
80% | 2057 mWh | 1468 mWh | 802 mWh |
Efficiency (63)
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 testing, outdoor mobility testing, charging evaluation, and power measurements, and then take into consideration the device’s battery capacity.
The OnePlus 9 Pro shows below-average efficiency performance compared to other Ultra-Premium devices in our database, behind the Apple iPhone 13 Pro Max by 32 points and the Samsung Galaxy S21 Ultra (Snapdragon) by 9 points.
Charge up
Nubia RedMagic 7 Pro
Best: Nubia RedMagic 7 Pro (105)
At 79.5%, the OnePlus 9 Pro has a quite efficient charging system, better than the Samsung at 77.8% and considerably better than the Apple at 65.2%. The charger is well-built and efficient, but dissipates a lot of energy while the phone is still attached after the battery is full.
Discharge
Apple iPhone 13 Pro
Best: Apple iPhone 13 Pro (121)
The OnePlus 9 Pro did poorly with 4G music streaming and when idle, but its other discharge test results were average within the Ultra-Premium segment.
Conclusion
The OnePlus 9 Pro’s battery performance was below average in terms of autonomy and efficiency; however, it comes with a fast charger and offers a very good charging experience.
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