Device comparison

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Device A

Galaxy S21+

Samsung · Phones

Brand Model Open full profile →

Device B

OPPO · Phones

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Complete comparison

Every available group and stored value, aligned by field.

Differences only

LAUNCH DATE3 fields

NETWORK6 fields

Specification	Galaxy S21+	A7 Pro Max
2G Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900
3G Bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO	WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
4G LTE	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G996U1; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G996B	LTE-FDD B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B26 / B28 / B32 / B66; LTE-TDD B38 / B39 / B40 / B41 / B42 / B43 / B48
5G	2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G996U1; 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G996B	n1 / n2 / n3 / n5 / n7 / n8 / n12 / n20 / n26 / n28 / n38 / n40 / n41 / n48 / n66 / n77 / n78
Speed	LTE, 5G	HSPA+, 4G LTE, 5G
Technology	5G/4G/LTE/GSM	GSM / WCDMA / LTE / 5G

BODY6 fields

Specification	Galaxy S21+	A7 Pro Max
Build	Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame	Wave-textured 3D back panel, multi-colour breathing light; MIL-STD-810H drop and impact tested
Colors	—	Surfing Blue, Lunar Black
Dimensions	161.5 x 75.6 x 7.8 mm (6.36 x 2.98 x 0.31 in)	162.98 x 77.97 x 8.57 mm
IP Rating	IP68 dust/water resistant (up to 1.5m for 30 min)	IP66 / IP68 / IP69 and IP69K dust and water resistant
SIM	Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)	Dual Nano-SIM, eSIM (carrier dependent)
Weight	200 g (Sub6), 202 g (mmWave) (7.05 oz)	226 g (Surfing Blue); 224 g (Lunar Black)

DISPLAY7 fields

Specification	Galaxy S21+	A7 Pro Max
Brightness	1300 nits (peak)	800 nits (typical), 1800 nits (HBM, typical)
Protection	Corning Gorilla Glass Victus	OPPO Crystal Guard glass
Refresh Rate	120Hz	60/90/120Hz adaptive; up to 330Hz touch sampling (select games)
Resolution	1080 x 2400 pixels, 20:9 ratio (~394 ppi density)	1272 x 2772 pixels (FHD+/1.5K), 450 ppi
Screen-to-body	~88.3%	93.5%
Size	6.7 inches, 107.8 cm2 (~88.3% screen-to-body ratio)	6.78 inches
Type	Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)	AMOLED (flexible), 1.07B colors (10-bit), 100% DCI-P3

PLATFORM4 fields

Specification	Galaxy S21+	A7 Pro Max
CPU	Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China	Octa-core (2x 2.4 GHz Cortex-A78 + 6x 2.0 GHz Cortex-A55)
Chipset	Exynos 2100 (5 nm) - International / Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China	Qualcomm Snapdragon 4 Gen 5 (4nm)
GPU	Mali-G78 MP14 - International Adreno 660 - USA/China	Adreno 629 MC1 @ 840MHz
OS	Android 11, up to 4 major Android upgrades, One UI 6.1	ColorOS 16 (Android 16)

MEMORY5 fields

MAIN CAMERA3 fields

Specification	Galaxy S21+	A7 Pro Max
Features	LED flash, auto-HDR, panorama	Power Flash, HI-RES, Portrait, Night, Panorama, PRO, Underwater mode, Dual-view video
MAIN CAMERA	12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video	50 MP, f/1.8, 79° FOV (wide), 5P lens, AF, 2-axis OIS; 2 MP, f/2.4, 89° FOV (monochrome)
Video	8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS	1080p@30fps, 720p@30/60fps, OIS/EIS, 720p@120fps slow-motion

SELFIE CAMERA3 fields

Specification	Galaxy S21+	A7 Pro Max
Features	HDR	AI Zoom Selfie (0.6x/1x/2x), Portrait, Night, Panorama, Retouch, Screen Fill Light, HI-RES
Selfie camera	10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF	50 MP, f/2.0, 100° FOV (ultrawide), 5P lens
Video	4K@30/60fps, 1080p@30fps	1080p@30fps, 720p@30fps, EIS

SOUND2 fields

Specification	Galaxy S21+	A7 Pro Max
3.5mm jack	No	No (USB Type-C digital headphones only)
Loudspeaker	Yes, with stereo speakers	Yes, stereo speakers

COMMUNICATION6 fields

Specification	Galaxy S21+	A7 Pro Max
Bluetooth	5.0, A2DP, LE	5.1, LE; SBC, AAC, LDAC, aptX, aptX HD
NFC	Yes	Yes (region dependent)
Positioning	GPS, GLONASS, BDS, GALILEO	GPS, GLONASS, BDS, Galileo, QZSS; A-GNSS
Radio	FM radio (Snapdragon model only; market/operator dependent)	—
USB	USB Type-C 3.2, OTG	USB Type-C, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac (Wi-Fi 5), dual-band 2.4GHz/5GHz, Wi-Fi Display, hotspot

FEATURES1 field

Specification	Galaxy S21+	A7 Pro Max
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under-display, optical), proximity, ambient light, color temperature, compass, accelerometer, gyroscope, infrared remote control

BATTERY3 fields

Specification	Galaxy S21+	A7 Pro Max
Capacity	4800 mAh	10000 mAh (typical), 9700 mAh (rated)
Charging Type	25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless	80W wired SUPERVOOC / 80W UFCS, 27W reverse wired
Type	Li-Ion 4800 mAh	Silicon-carbon

ADDITIONAL INFORMATION9 fields

Specification	Galaxy S21+	A7 Pro Max
Colors	Phantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red	Surfing Blue, Lunar Black
Compatibility	—	China model PYC110 (launched 4 Aug 2026) comes in 8GB+128GB, 8GB+256GB, 12GB+256GB and 12GB+512GB; global CPH2909 comes in 6GB+256GB (Europe) and 8GB+256GB (Asia). Global model: NFC depends on region; eSIM only with some carriers.
Cooling	—	SuperCool VC system with a 5,000 mm² vapor chamber (16.2% more VC area than the A6 Pro 5G, OPPO)
Environmental	—	Recyclability rate 92.88% (EU ecodesign info, CPH2909); China model passes China RoHS conformity assessment (OPPO)
Launch Price	—	CNY 2,199 (8GB+128GB), CNY 2,699 (12GB+256GB), CNY 2,999 (12GB+512GB) — China launch, 2026-08-04; EUR 599 (6GB+256GB) — Austria; MYR 2,499 RRP / MYR 2,299 with launch rebate (8GB+256GB) — Malaysia; THB 19,999 — Thailand (global rollout Sept 2026); TWD 17,990 (8GB+256GB) — Taiwan, on sale 2026-10-01
Launch Price (USD)	$297.00 (reference only — see Price in Nigeria above for the actual retail price)	—
Models	SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N, SM-G9960	PYC110, CPH2909
Models and regions	—	PYC110 (China); CPH2909 (global — Austria, Malaysia, Thailand, Taiwan)
Price in Nigeria	₦260,000 (Saved seller price · not yet reverified)	₦459,700 (Stored estimate)

TESTS2 fields

Specification	Galaxy S21+	A7 Pro Max
Battery Endurance	—	Online video scrolling: ~40.3 h; MOBA gaming: ~15 h; video calling: ~14.7 h; standby: 39 days (OPPO Labs, global model). Kuai Keji review (China model): 20 h 41 min of continuous screen-on heavy-use simulation (Battery Dog app) from 100% to 20%
Performance	—	Geekbench 7: 834 single-core / 2,181 multi-core (pre-launch CPH2909 listing, 8GB RAM, reported by Gizmochina); Geekbench 6.7.1: 976 single-core / 2,250 multi-core (pre-launch PYC110 listing, 12GB RAM, reported by Notebookcheck)

SECURITY1 field

Specification	Galaxy S21+	A7 Pro Max
Security	Biometric security: Fingerprint (under display, ultrasonic).	Optical under-display fingerprint, face recognition

EU LABEL1 field

Specification	Galaxy S21+	A7 Pro Max
Battery	—	1300 charge cycles minimum (EU ecodesign info for CPH2909, OPPO Austria)